R1170x Series
800mA LDO
No.EK-088-091101 CMOS LDO Regulator
The R1170x Series are CMOS-based LDO regulators featuring 800mA output.
The CMOS process provides both high output current and low supply current. The dropout voltage is significantly lower than bipolar
regulators. The CE pin can switch the regulator into standby mode. In addition to a fold-back protection circuit built into conventional
LDO regulators, R1170x has a thermal shutdown circuit. Ceramic capacitors can be used.
FEATURES
• Supply Current (ISS)····················Typ. 80μA (VIN=SET VOUT+1V)
• Standby Current (Istandby) ·············Typ. 0.1μA (VIN=6V, in standby)
• Dropout Voltage (VDIF) ················Typ. 0.12V (IOUT=300mA, VOUT=2.8V)
• Ripple Rejection (RR)·················Typ. 50dB (f=1kHz)
• Input Voltage Range (VIN)···········Max. 6.0V
• Output Voltage Range (VOUT)······1.5V to 5.0V (internally fixed)
• Output Voltage Accuracy············± 2%
• Temp. coeff. of Output Voltage ·······Typ. ± 100ppm/°C
• Line Regulation·······························Typ. 0.05%/V
• Fold-back Protection Circuit············Current limit Typ. 40mA
• Thermal Shutdown Circuit ··············Stops at 150°C
• Packages········································
HSON-6, SOT-89-5, HSOP-6J
• Ceramic capacitors can be used. ···10μF or more
BLOCK DIAGRAMS
R1170xxx1A R1170xxx1B
(
CE pin "L" active) (CE pin "H" active)
VDD
GND
VOUT
Vref
Current Limit
Thermal Shutdown
CE
VDD
GND
VOUT
CE
Vref
Current Limit
Thermal Shutdown
SELECTION GUIDES
Package Quantity per Reel Part No.
HSON-6 3,000 pcs R1170D
.
xx
.
1
.
∗
-TR-F
SOT-89-5 1,000 pcs R1170H
.
xx
.
1
.
∗
-T1-F
HSOP-6J 1,000 pcs R1170S
.
xx
.
1
.
∗
-E2-F
.
xx
.
: Specify the output voltage within the range 1.5V (
.
15
.
) to 5.0V (
.
50
.
)
in 0.1V steps.
.
∗
: Select the polarity of the CE pin from (
.
A
.
) "L" active or (
.
B
.
) "H" active.
PACKAGES (Top View) TYPICAL CHARACTERISTIC
HSON-6 SOT-89-5 HSOP-6J
1 3
6 4
2
5
∗
1 3
5 4
2
1 3
6 4
2
5
1 VOUT∗1
2 VOUT∗1
3 CE or CE
4 GND
5 VDD∗1
6 VDD∗1
1 CE or CE
2 GND
3 NC
4 VDD
5 VOUT
1 VOUT
2 GND
3 CE or CE
4 NC
5 GND
6 VDD
R1170x301B Drop out Voltage vs. Output Current
0.50
0.45
0.20
0.25
0.30
0.35
0.40
0.15
0.10
0.05
0
0 100 200 300 400 500 600 700 800
85°C
25°C
-40°C
Output Current I
OUT
(mA)
Dropout Voltage V
DIF
(V)
∗) The tab and tab suspension leads on back side are substrate level (GND).
∗1) The VOUT pin and VDD pin must be wired each other when it is mounted on board.
APPLICATIONS
• Power source for hand-held communication equipment, cameras, and VCRs
• Power source for home appliances and digital home appliances • Power source for laptop personal computers
• Power source for battery-powered equipment
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.
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