S-1701 Series
www.sii-ic.com
HIGH RIPPLE-REJECTION LOW DRO POUT
CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
© Seiko Instruments Inc., 2004-2010 Rev.3.0_00
Seiko Instruments Inc. 1
The S-1701 Series, developed based on CMOS technology, is a voltage regulator with a reset function and integrates a
high-accuracy voltage detector with on-chip delay circuit and a pos itive v olt age regul ator with a l o w drop out voltag e and h ig h
output voltage on one chi p.
The S-1701 Series is availabl e in many type s according to the se lectio n of the voltage detector block of t he voltage detector,
including a SENSE pin input product. A built-in low on-resistance transist or provides a low dropout volt age and large output
current.
Small ceramic capacitors are available and an external capacitor for delay is needless. Small SOT-23-5 and SOT-89-5
packages realize high-density mounting.
Features
Regulator block
Output voltage: 1.5 V to 5.0 V, selectable in 0.1 V steps.
High-accuracy output voltage: ±1.0%
High peak current capability: 400 mA output is possible (at VIN VOUT(S) + 2.0 V)*1
Built-in ON/OFF circuit: Ensures long battery life.
During power-off: 0.1 μA typ., 1.0 μA max.
Low ESR capacitor can be used: A ceramic capacitor of 1.0 μF or more can be used for the output
capacitor.
High ripple rejection: 70 dB typ. (at 1.0 kHz)
Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
Operating voltage range: 2.0 V to 6.5 V
Detector block
Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V steps.
High-accuracy output voltage: ±1.0%
Output mode: Nch open-drain active low output
No need of an external capacitor for delay
Three delay time settings: No delay (60 μs), 50 ms, 100 ms
Operating voltage range: 0.8 V to 6.5 V
Whole regulator
Low current consumption During operation: 85 μA typ.
Lead-free, Sn 100%, halogen-free*2
*1. Attention should be paid to the power dissipation of the package when the output current is large.
*2. Refer to “ Product Name Structure” for details.
Applications
Power supply and reset circuit for battery-powered devices
Power supply for personal communication devices
Power supply for home appliances
Packages
SOT-23-5
SOT-89-5
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
2
Block Diagrams
1. S-1701 Series A/B/C/G/H/J ty pes
ON/OFF pin : Provided
SENSE pin : VIN connection
ON/OFF
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
*1. Parasitic diode
Oscillating
counter timer
(Delay circuit)
Figure 1
2. S-1701 Series D/E/F/K/L/M types
ON/OFF pin : Provided
SENSE pin : VOUT connection
*1. Parasitic diode
ON/OFF
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
Oscillating
counter timer
(Delay circuit)
Figure 2
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 3
3. S-1701 Series N/P/Q types
ON/OFF pin : VIN connection
SENSE pin : Provided
*1. Parasitic diode
SENSE
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
Oscillating
counter timer
(Delay circuit)
Figure 3
4. S-1701 Series R/S/T types
ON/OFF pin : VDOUT connection
SENSE pin : Provided
*1. Parasitic diode
SENSE
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
Oscillating
counter timer
(Delay circuit)
Figure 4
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
4
5. S-1701 Series U/V/W types
ON/OFF pin : VIN connection
SENSE pin : VOUT connection
*1. Parasitic diode
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
Oscillating
counter timer
(Delay circuit)
Figure 5
6. S-1701 Series X/Y/Z types
ON/OFF pin : VIN connection
SENSE pin : VIN connection
*1. Parasitic diode
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage cir cuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
+
Oscillating
counter timer
(Delay circuit)
Figure 6
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 5
Product Name Structure
The product types, output voltage, detection voltage, and package types for the S-1701 Series can be selected at the
user’s request. Refer to the “1. Product name” for the meanings of the characters in the product name, “2. Function
list according to product type” for product types, “3. Package” regarding the package drawings and “4. Product
name list” for the full product names.
1. Product name
S-1701 x xx xx - xxxx x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales office)
Package name (abbreviation) and packing specifications
*1
M5T1 : SOT-23-5, tape product
U5T1 : SOT-89-5, tape product
Detection voltage
*2
15 to 55
(e.g., when the output voltage is 1.5 V, it is expressed as 15.)
Output voltage
15 to 50
(e.g., when the output voltage is 1.5 V, it is expressed as 15.)
Product type
*3
A to Z (I and O are not provided)
*1. Refer to the tape specifications at the end of this book.
*2. In the S-1701D to S-1701F, S-1701K to S-1701M, and S-1701U to S-1701W types (that detect output
voltage), a reset signal may be output due to the undershoot of the output voltage when the input volt age or
load current changes transiently. Therefore, set the detection voltage after sufficient evaluation using actual
devices.
*3. Refer to the “2. Function list according to product type”.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
6
2. Function list according to product type
Table 1
Regulator Block Detector Block
Product Type ON/OFF Pin ON/OFF Logic SENSE Pin Release Delay Time
A Provided Active high VIN connection
(pin not provided) No delay (60 μs)
B Provided Active high VIN connection
(pin not provided) 50 ms
C Provided Active high VIN connection
(pin not provided) 100 ms
D Provided Active high VOUT connection
(pin not provided) No delay (60 μs)
E Provided Active high VOUT connection
(pin not provided) 50 ms
F Provided Active high VOUT connection
(pin not provided) 100 ms
G Provided Active low VIN connection
(pin not provided) No delay (60 μs)
H Provided Active low VIN connection
(pin not provided) 50 ms
J Provided Active low VIN connection
(pin not provided) 100 ms
K Provided Active low VOUT connection
(pin not provided) No delay (60 μs)
L Provided Active low VOUT connection
(pin not provided) 50 ms
M Provided Active low VOUT connection
(pin not provided) 100 ms
N VIN connection
(pin not provided) None Provided No delay (60 μs)
P VIN connecti on
(pin not provided) None Provided 50 ms
Q VIN connecti on
(pin not provided) None Provided 100 ms
R VDOUT connection
(pin not provided) None Provided No delay (60 μs)
S VDOUT connection
(pin not provided) None Provided 50 ms
T VDOUT connection
(pin not provided) None Provided 100 ms
U VIN connection
(pin not provided) None VOUT connection
(pin not provided) No delay (60 μs)
V VIN connecti on
(pin not provided) None VOUT connection
(pin not provided) 50 ms
W VIN connection
(pin not provided) None VOUT connection
(pin not provided) 100 ms
X VIN connection
(pin not provided) None VIN connection
(pin not provided) No delay (60 μs)
Y VIN connecti on
(pin not provided) None VIN connection
(pin not provided) 50 ms
Z VIN connection
(pin not provided) None VIN connection
(pin not provided) 100 ms
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 7
3. Package
Drawing Code
Package Name Package Tape Reel
SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD
SOT-89-5 UP005-A-P-SD UP005-A-C-SD UP005-A-R-SD
4. Product name list
4. 1 S-1701 Series A type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : No delay (60 μs)
Table 2
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 4.1 V ± 1.0% S-1701A1541-M5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701A1815-M5T1x S-1701A1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701A2520-M5T1x S-1701A2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701A2521-M5T1x S-1701A2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701A2522-M5T1x S-1701A2522-U5T1x
2.7 V ± 1.0% 2.8 V ± 1.0% S-1701A2728-M5T1x
2.8 V ± 1.0% 2.5 V ± 1.0% S-1701A2825-M5T1x
2.8 V ± 1.0% 3.3 V ± 1.0% S-1701A2833-M5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701A3024-M5T1x S-1701A3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701A3025-M5T1x S-1701A3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701A3026-M5T1x S-1701A3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701A3326-M5T1x S-1701A3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701A3327-M5T1x S-1701A3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701A3328-M5T1x S-1701A3328-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701A3330-M5T1x
3.3 V ± 1.0% 3.1 V ± 1.0% S-1701A3331-M5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701A3430-M5T1x S-1701A3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701A5040-M5T1x S-1701A5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701A5041-M5T1x S-1701A5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701A5042-M5T1x S-1701A5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701A5043-M5T1x S-1701A5043-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
8
4. 2 S-1701 Series B type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : 50 ms
Table 3
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701B1815-M5T1x S-1701B1815-U5T1x
1.8 V ± 1.0% 2.3 V ± 1.0% S-1701B1823-M5T1x
1.8 V ± 1.0% 2.8 V ± 1.0% S-1701B1828-M5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701B2520-M5T1x S-1701B2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701B2521-M5T1x S-1701B2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701B2522-M5T1x S-1701B2522-U5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701B3024-M5T1x S-1701B3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701B3025-M5T1x S-1701B3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701B3026-M5T1x S-1701B3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701B3326-M5T1x S-1701B3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701B3327-M5T1x S-1701B3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701B3328-M5T1x S-1701B3328-U5T1x
3.3 V ± 1.0% 4.2 V ± 1.0% S-1701B3342-U5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701B3430-M5T1x S-1701B3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701B5040-M5T1x S-1701B5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701B5041-M5T1x S-1701B5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701B5042-M5T1x S-1701B5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701B5043-M5T1x S-1701B5043-U5T1x
4. 3 S-1701 Series C type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : 100 ms
Table 4
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701C1815-M5T1x S-1701C1815-U5T1x
1.8 V ± 1.0% 3.0 V ± 1.0% S-1701C1830-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701C2520-M5T1x S-1701C2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701C2521-M5T1x S-1701C2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701C2522-M5T1x S-1701C2522-U5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701C3024-M5T1x S-1701C3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701C3025-M5T1x S-1701C3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701C3026-M5T1x S-1701C3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701C3326-M5T1x S-1701C3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701C3327-M5T1x S-1701C3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701C3328-M5T1x S-1701C3328-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701C3330-M5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701C3430-M5T1x S-1701C3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701C5040-M5T1x S-1701C5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701C5041-M5T1x S-1701C5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701C5042-M5T1x S-1701C5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701C5043-M5T1x S-1701C5043-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 9
4. 4 S-1701 Series D type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : No delay (60 μs)
Table 5
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701D1815-M5T1x S-1701D1815-U5T1x
1.8 V ± 1.0% 1.6 V ± 1.0% S-1701D1816-M5T1x
1.8 V ± 1.0% 1.7 V ± 1.0% S-1701D1817-M5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701D2520-M5T1x S-1701D2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701D2521-M5T1x S-1701D2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701D2522-M5T1x S-1701D2522-U5T1x
2.5 V ± 1.0% 2.3 V ± 1.0% S-1701D2523-M5T1x
2.5 V ± 1.0% 2.4 V ± 1.0% S-1701D2524-M5T1x
2.5 V ± 1.0% 2.6 V ± 1.0% S-1701D2526-M5T1x
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701D2722-M5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701D3024-M5T1x S-1701D3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701D3025-M5T1x S-1701D3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701D3026-M5T1x S-1701D3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701D3326-M5T1x S-1701D3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701D3327-M5T1x S-1701D3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701D3328-M5T1x S-1701D3328-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701D3330-M5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701D3430-M5T1x S-1701D3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701D5040-M5T1x S-1701D5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701D5041-M5T1x S-1701D5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701D5042-M5T1x S-1701D5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701D5043-M5T1x S-1701D5043-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
10
4. 5 S-1701 Series E type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : 50 ms
Table 6
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701E1815-M5T1x S-1701E1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701E2520-M5T1x S-1701E2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701E2521-M5T1x S-1701E2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701E2522-M5T1x S-1701E2522-U5T1x
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701E2722-M5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701E3024-M5T1x S-1701E3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701E3025-M5T1x S-1701E3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701E3026-M5T1x S-1701E3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701E3326-M5T1x S-1701E3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701E3327-M5T1x S-1701E3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701E3328-M5T1x S-1701E3328-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701E3330-M5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701E3430-M5T1x S-1701E3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701E5040-M5T1x S-1701E5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701E5041-M5T1x S-1701E5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701E5042-M5T1x S-1701E5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701E5043-M5T1x S-1701E5043-U5T1x
4. 6 S-1701 Series F type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : 100 ms
Table 7
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701F1815-M5T1x S-1701F1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701F2520-M5T1x S-1701F2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701F2521-M5T1x S-1701F2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701F2522-M5T1x S-1701F2522-U5T1x
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701F2722-M5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701F3024-M5T1x S-1701F3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701F3025-M5T1x S-1701F3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701F3026-M5T1x S-1701F3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701F3326-M5T1x S-1701F3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701F3327-M5T1x S-1701F3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701F3328-M5T1x S-1701F3328-U5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701F3430-M5T1x S-1701F3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701F5040-M5T1x S-1701F5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701F5041-M5T1x S-1701F5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701F5042-M5T1x S-1701F5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701F5043-M5T1x S-1701F5043-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 11
4. 7 S-1701 Series G type
ON/OFF pin : Provided ON/OFF logic : Active low
SENSE pin : VIN connection Release delay time : No delay (60 μs)
Table 8
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
2.5 V ± 1.0% 2.4 V ± 1.0% S-1701G2524-M5T1x
3.3 V ± 1.0% 3.1 V ± 1.0% S-1701G3331-M5T1x
4. 8 S-1701 Series H type
ON/OFF pin : Provided ON/OFF logic : Active low
SENSE pin : VIN connection Release delay time : 50 ms
Table 9
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
5.0 V ± 1.0% 4.5 V ± 1.0% S-1701H5045-U5T1x
4. 9 S-1701 Series M type
ON/OFF pin : Provided ON/OFF logic : Active low
SENSE pin : VOUT connection Release delay time : 100 ms
Table 10
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701M1815-M5T1x
4. 10 S-1701 Series N type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : No delay (60 μs)
Table 11
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701N1515-M5T1x S-1701N1515-U5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701N1815-M5T1x S-1701N1815-U5T1x
1.8 V ± 1.0% 2.4 V ± 1.0% S-1701N1824-U5T1x
1.8 V ± 1.0% 2.7 V ± 1.0% S-1701N1827-M5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701N2515-M5T1x S-1701N2515-U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701N2715-M5T1x S-1701N2715-U5T1x
2.7 V ± 1.0% 2.4 V ± 1.0% S-1701N2724-M5T1x S-1701N2724-U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701N3015-M5T1x S-1701N3015-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701N3315-M5T1x S-1701N3315-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701N3330-M5T1x S-1701N3330-U5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701N5015-M5T1x S-1701N5015-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
12
4. 11 S-1701 Series P type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 50 ms
Table 12
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701P1515-M5T1x S-1701P1515-U5T1x
1.5 V ± 1.0% 2.7 V ± 1.0% S-1701P1527-M5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701P1815-M5T1x S-1701P1815-U5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701P2515-M5T1x S-1701P2515-U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701P2715-M5T1x S-1701P2715-U5T1x
2.8 V ± 1.0% 4.3 V ± 1.0% S-1701P2843-U5T1x
2.8 V ± 1.0% 4.4 V ± 1.0% S-1701P2844-U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701P3015-M5T1x S-1701P3015-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701P3315-M5T1x S-1701P3315-U5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701P5015-M5T1x S-1701P5015-U5T1x
4. 12 S-1701 Series Q type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 100 ms
Table 13
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701Q1515-M5T1x S-1701Q1515-U5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701Q1815-M5T1x S-1701Q1815-U5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701Q2515-M5T1x S-1701Q2515-U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701Q2715-M5T1x S-1701Q2715-U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701Q3015-M5T1x S-1701Q3015-U5T1x
3.2 V ± 1.0% 2.7 V ± 1.0% S-1701Q3227-U5T1x
3.2 V ± 1.0% 4.2 V ± 1.0% S-1701Q3242-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701Q3315-M5T1x S-1701Q3315-U5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701Q5015-M5T1x S-1701Q5015-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 13
4. 13 S-1701 Series R type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : No delay (60 μs)
Table 14
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701R1515-M5T1x S-1701R1515-U5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701R1815-M5T1x S-1701R1815-U5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701R2515-M5T1x S-1701R2515-U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701R2715-M5T1x S-1701R2715-U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701R3015-M5T1x S-1701R3015-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701R3315-M5T1x S-1701R3315-U5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701R5015-M5T1x S-1701R5015-U5T1x
4. 14 S-1701 Series S type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 50 ms
Table 15
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701S1515-M5T1x S-1701S1515-U5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701S1815-M5T1x S-1701S1815-U5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701S2515-M5T1x S-1701S2515-U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701S2715-M5T1x S-1701S2715-U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701S3015-M5T1x S-1701S3015-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701S3315-M5T1x S-1701S3315-U5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701S5015-M5T1x S-1701S5015-U5T1x
4. 15 S-1701 Series T type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 100 ms
Table 16
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701T1515-M5T1x S-1701T1515- U5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701T1815-M5T1x S-1701T1815- U5T1x
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701T2515-M5T1x S-1701T2515- U5T1x
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701T2715-M5T1x S-1701T2715- U5T1x
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701T3015-M5T1x S-1701T3015- U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701T3315-M5T1x S-1701T3315- U5T1x
3.3 V ± 1.0% 2.5 V ± 1.0% S-1701T3325-M5T1x
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701T5015-M5T1x S-1701T5015- U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
14
4. 16 S-1701 Series U type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : No delay (60 μs)
Table 17
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701U1815-M5T1x S-1701U1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701U2520-M5T1x S-1701U2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701U2521-M5T1x S-1701U2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701U2522-M5T1x S-1701U2522-U5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701U3024-M5T1x S-1701U3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701U3025-M5T1x S-1701U3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701U3026-M5T1x S-1701U3026-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701U3326-M5T1x S-1701U3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701U3327-M5T1x S-1701U3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701U3328-M5T1x S-1701U3328-U5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701U3430-M5T1x S-1701U3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701U5040-M5T1x S-1701U5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701U5041-M5T1x S-1701U5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701U5042-M5T1x S-1701U5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701U5043-M5T1x S-1701U5043-U5T1x
4. 17 S-1701 Series V type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : 50 ms
Table 18
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701V1815-M5T1x S-1701V1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701V2520-M5T1x S-1701V2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701V2521-M5T1x S-1701V2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701V2522-M5T1x S-1701V2522-U5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701V3024-M5T1x S-1701V3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701V3025-M5T1x S-1701V3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701V3026-M5T1x S-1701V3026-U5T1x
3.2 V ± 1.0% 2.7 V ± 1.0% S-1701V3227-M5T1x
3.3 V ± 1.0% 2.5 V ± 1.0% S-1701V3325-M5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701V3326-M5T1x S-1701V3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701V3327-M5T1x S-1701V3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701V3328-M5T1x S-1701V3328-U5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701V3430-M5T1x S-1701V3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701V5040-M5T1x S-1701V5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701V5041-M5T1x S-1701V5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701V5042-M5T1x S-1701V5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701V5043-M5T1x S-1701V5043-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 15
4. 18 S-1701 Series W type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : 100 ms
Table 19
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.6 V ± 1.0% 2.6 V ± 1.0% S-1701W1626-M5T1x
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701W1815-M5T1x S-170 1W1815-U5T1x
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701W2520-M5T1x S-170 1W2520-U5T1x
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701W2521-M5T1x S-170 1W2521-U5T1x
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701W2522-M5T1x S-170 1W2522-U5T1x
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701W3024-M5T1x S-170 1W3024-U5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701W3025-M5T1x S-170 1W3025-U5T1x
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701W3026-M5T1x S-170 1W3026-U5T1x
3.2 V ± 1.0% 2.7 V ± 1.0% S-1701W3227-M5T1x
3.3 V ± 1.0% 2.4 V ± 1.0% S-1701W3324-U5T1x
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701W3326-M5T1x S-170 1W3326-U5T1x
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701W3327-M5T1x S-170 1W3327-U5T1x
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701W3328-M5T1x S-170 1W3328-U5T1x
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701W3430-M5T1x S-170 1W3430-U5T1x
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701W5040-M5T1x S-170 1W5040-U5T1x
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701W5041-M5T1x S-170 1W5041-U5T1x
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701W5042-M5T1x S-170 1W5042-U5T1x
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701W5043-M5T1x S-170 1W5043-U5T1x
4. 19 S-1701 Series X type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : No delay (60 μs)
Table 20
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 2.5 V ± 1.0% S-1701X1525-M5T1x
1.8 V ± 1.0% 2.5 V ± 1.0% S-1701X1825-M5T1x
2.2 V ± 1.0% 1.9 V ± 1.0% S-1701X2219-M5T1x
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701X3025-M5T1x
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701X3228-M5T1x S-1701X3228-U5T1x
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701X3315-M5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701X3330-U5T1x
3.3 V ± 1.0% 4.2 V ± 1.0% S-1701X3342-U5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
16
4. 20 S-1701 Series Y type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : 50 ms
Table 21
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701Y3228-M5T1x S-1701Y3228-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701Y3330-U5T1x
3.3 V ± 1.0% 4.0 V ± 1.0% S-1701Y3340-U5T1x
3.3 V ± 1.0% 4.2 V ± 1.0% S-1701Y3342-M5T1x S-1701Y3342-U5T1x
4. 21 S-1701 Series Z type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : 100 ms
Table 22
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.6 V ± 1.0% 2.6 V ± 1.0% S-1701Z1626-M5T1x
1.8 V ± 1.0% 2.6 V ± 1.0% S-1701Z1826-M5T1x
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701Z3228-M5T1x S-1701Z3228-U5T1x
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701Z3330-M5T1x
Remark 1. Please contact our sales office for products with an output voltage or detection voltage other than those
specified above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00 S-1701 Series
Seiko Instruments Inc. 17
Pin Configurations
Table 23
Pin No. Symbol Description
1 VIN Input voltage pin
2 VSS GND pin
3 ON/OFF
Shutdown pin
(A, B, C, D, E, F, G, H, J, K, L, M types)
3 SENSE
Detector SENSE pin
(N, P, Q, R, S, T types)
3 NC*1 No connection
(U, V, W, X, Y, Z types)
5 4
1 3 2
SOT-23-5
Top view
4 VDOUT
Detector output voltage pin*2
5 VOUT Regulator output voltage pin
Figure 7
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
*2. Due to Nch open drain produ cts, please use the pull-up resistor.
Table 24
Pin No. Symbol Description
1 VIN Input voltage pin
2 VSS GND pin
3 VOUT Regulator output voltage pin
4 VDOUT
Detector output voltage pin*2
5 ON/OFF
Shutdown pin
(A, B, C, D, E, F, G, H, J, K, L, M types)
5 SENSE
Detector SENSE pin
(N, P, Q, R, S, T types)
5 4
1 3 2
SOT-89-5
Top view
5 NC*1 No connection
(U, V, W, X, Y, Z types)
Figure 8 *1. T he NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
*2. Due to Nch open drain produ cts, please use the pull-up resistor.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.3.0_00
Seiko Instruments Inc.
18
Absolute Maximum Ratings
Table 25
(Ta = 25°C unless otherwise specified)
Item Symbol Absolute Maximum Rating Unit
VIN V
SS 0.3 to VSS + 7 V
VON/OFF V
SS 0.3 to VIN + 0.3 V
Input voltage VSENSE V
SS 0.3 to VSS + 7 V
Regulator output voltage VOUT V
SS 0.3 to VIN + 0.3 V
Detector output voltage VSS 0.3 to VSS + 7 V
R,S,T type
VDOUT VSS 0.3 to VIN + 0.3 V
300 (When not mounted on b oard) mW
SOT-23-5 600*1 mW
500 (When not mounted on b oard) mW
Power
dissipation SOT-89-5 PD
1000*1 mW
Operating ambient temperature Topr 40 to +85 °C
Storage temperature Tstg 40 to +125 °C
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
(1) When mounted on board
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