INNOLINE
DC/DC-Converter
with 3 year Warranty
R-7xxx
www.recom-power.comI-52 REV: 2/2014
EN-60950-1 Certified
2, 3, 4 AMP
SIP12
Vertical &
Horizontal
●Non-Isolated
●Synchronous rectification design
●Adjustable Output voltage
●2, 3, 4AMP Adjustable Positive Step Down
Integrated Switching Regulator
●Over load protection (125% full load typical)
●Remote ON/OFF Control(Ground Off)
●Wide Input Range
●UL94V-0 Package Material
●Continuous short circuit protection
(Very low short current Iin sc<50mA)
●Input voltage range 4.5V~28V
●Efficiency to 97%
Features
Selection Guide
Part Input Nominal Vout Output Efficiency (%)
Number Range Output Voltage Adjust Range Current Min. Vin 12V Max. Vin
SIP12 (V) (V) (V) (A)
R-723.3x 4.5 – 28 3.3 2.5 – 5.5 2 95 93 89
R-725.0x 6.5 – 28 5.0 3.0 – 5.5 2 96 95 91
R-726.5x 8.5 – 28 6.5 5.0 – 8.0 2 97 96 93
R-729.0x 12 – 28 9.0 7.0 – 11 2 96 - 93
R-7212x 15 – 28 12 10 – 14 2 97 - 95
R-7215x 19 – 28 15 13 – 17 2 97 - 96
R-733.3x 4.5 – 28 3.3 2.5 – 5.5 3 94 93 89
R-735.0x 6.5 – 28 5.0 3.0 – 5.5 3 95 95 92
R-736.5x 8.5 – 28 6.5 5.0 – 8.0 3 97 96 93
R-739.0x 12 – 28 9.0 7.0 – 11 3 96 - 94
R-7312x 15 – 28 12 10 – 14 3 97 - 96
R-7315x 19 – 28 15 13 – 17 3 97 - 96
R-743.3x 4.5 – 28 3.3 2.5 – 5.5 4 93 92 88
R-745.0x 6.5 – 28 5.0 3.0 – 5.5 4 95 94 91
R-746.5x 8.5 – 28 6.5 5.0 – 7.5 4 96 96 93
Note: Vin-Vout ≥1.5V~4.0V depending on Vout if adjust function is used!
Suffix x: (see mechanical drawing for details)
x = P pins vertical through hole
x = D pins bent for horizontal through hole mounting
The R-7XXX series is a high performance 2.5V to 15V , 2Amp to 4Amp,12-Pin SIP (single in-line package),
Integrated switching regulator (ISR). The Synchronuous - rectified design yields excellent efficiencies up to 97%.
Short circuit protection reduces the short circuit input current to under 50mA .
Description
RoHS
2011/65/EU
6/6
Refer to Application Notes
Characteristics Conditions Min. Typ. Max.
Output Voltage Range All Series 2.5 17V
Output Current R-72xxP/D 0.2 2.0A
R-73xxP/D 0.3 3.0A
R-74xxP/D 0.4 4.0A
Output Current Limit R-72xxP/D 2.5 3.0A
R-73xxP/D 3.75 4.25A
R-74xxP/D 5.0 5.5A
Short Circuit Input Current All Series 50 100mA
Short Circuit Protection Continuous, automatic recovery
Output Voltage Accuracy (At 100% Load) All Series ±1% ±2%
Line Voltage Regulation (Vin = min. to max. at full load) All Series 0.5 1.0%
Load Regulation (10 to 100% full load) All Series 0.5 1.0%
Ripple & Noise All Series 40mVp-p 70mVp-p
Transient Response (see note 1) 50% Load Change – 100µs 200µs
Vout Over / Undershoot 100mV
Remote ON / OFF (see note 2) Open or High (Power ON) 4.5 28V
Low (Power OFF) 0.8V
Max capacitance Load with normal start-up time, no external diodes 200µF
with <1 second start up time + diode protection circuit 6800µF
Switching Frequency 270 300 330kHz
Shutdown current ON / OFF Pin pulled low 100µA
Quiescent Current Vin = min. to max. at 0% load 30mA
Operating Temperature Range -40°C +85°C
Operating Case Temperature +110°C
Storage Temperature Range -40°C +125°C
Case Material Non-Conductive Black Plastic
Potting Material Epoxy (UL94V-0)
Thermal Impedance Natural Convection 25°C/W
Internal Power Dissipation Ta < 60°C 1.4W
Package Weight 9g
Packing Quantity 15 pcs per Tube
MTBF (Nominal Vout, 100% load) Tamb. = +25°C 749 x 10³hours
Tamb. = +85°C 150 x 10³hours
EN General Safety Report: SPCLVD1301028-1 EN60950-1:2006 + A12:2011
I-53www.recom-international.com REV: 2/2014
R-7xxx
R-7xxxP_D
Series
Specifications (refer to the standard application circuit, Ta: 25°C)
INNOLINE
DC/DC-Converter
Notes: 1. Requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be placed as close as possible to the output pins).
2. ON / OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET.
Output Current vs Input Voltage
Ambient Temperature (°C)
90
60
20
40
1.4
10.5
Internal Power Dissipation (W)
0
80
85
How to calculate the max output current
The internal power dissipation(PD)follows the equation:
PD= Io × Vo × (1-η)
Io = PD/ [ Vo × (1-η)]
Where PD= Internal power dissipation
Io = Output current
Vo = Output voltage
η= Efficiency
Example: R-745.0P , at Vin = 28Vdc , Vo = 5Vdc ,η=91% (see "Selection Guide" table)
(a) When Ta = 60°C , PD= 1.4 Watt (see beside diagram)
Io = 1.4(W) / 5(V) × (1-0.91) = 3.11(A)
(b) When Ta = 85°C , PD= 1 Watt (see beside diagram)
Io = 1(W) / 5(V) × (1-0.91) = 2.222(A)
(c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table)
When Ta = 85°C , PD= 1 Watt (see beside diagram)
Io = 1(W) / 5(V) × (1-0.94) =3.33(A)
}
Detailed Information see
Application Notes chapter "MTBF"
R-7xxx
www.recom-power.comI-54 REV: 2/2014
Package Style and Pinning (mm)
Pin Connections
Pin # Name Description
1 ON / OFF Input pin : Active low (less than 0.8V) to disable the device
2, 3, 4 Vin Power input
5, 6, 7, 8 GND Input and output ground (common)
9 , 10, 11 Vout Power output
12 Vout-Adj With external resistors R1,R2 to selected output voltage
Bottom
View
1 2 3 4 5 6 7 8 9
2.54
0.7
4.0
15.00
32.20
10 11 12
2.13
9.1
0.2
Bottom
View
4.0
0.7
0.7
1 2 3 4 5 6 7 8 9
2.54
0.7
15.00
32.20
10 11 12
9.1
0.2
RECOM
R-723.3P
RECOM
R-723.3D
2.13
MAX 17.00
SIP12 PIN Package
R-7xxxP_D
Series
INNOLINE
DC/DC-Converter
Characteristics
Ripple (mV)
50
5
Ripple Vs
Vin
Vo=9V
Vo=3.3V
Vo=5V
Vo=12V
25
Vin ( V )
10 15 20 25 28
Vo=6.5V
Vo=15V
( Vo )
Ripple (mV)
100
5
Ripple Vs
Vin
3.3V
5V
50
Vin ( V )
10 15 20 25 28
6.5V
( Vo )
R-72xx / R-73xx
Ripple VS Vin
R-74xx
Ripple VS Vin
Efficiency (%)
100
5
Efficiency Vs
Vin
3.3V
5V
50
Vin ( V )
10 15 20 25 28
6.5V
15V
( Vo )
Efficiency (%)
100
5
Efficiency Vs
Vin
Vo=3.3V
Vo=5V
50
Vin ( V )
10 15 20 25 28
Vo=6.5V
( Vo )
R-72xx / R-73xx
Efficiency VS Vin
R-74xx
Efficiency VS Vin
Efficiency (%)
100
14
23
90
Efficiency Vs Iout (Vin=Min)
80
70
6.5V
3.3V
5.0V
( Vo )
R-72xx / R-73xx / R-74xx
Efficiency / Load Vin=Min
R-72xx / R-73xx / R-74xx
Efficiency / Load Vin=Max
Tolerance: ± 0.25 mm
I-55www.recom-international.com REV: 2/2014
INNOLINE
DC/DC-Converter
Table 1: Adjustment Resistor Values
Standard Application Circuit
Vout
Com
Vin
TTL
Com
2, 3, 4 9, 10, 11
R-72XX
R-73XX
R-74XX R1
(Adjust down)
R2
(Adjust up)
12
5, 6, 7,8
1µF
(Optional) 1
C1
OFF
ON
Q1
C2
100µF/10V
(REQ`D)
Add a blocking diode to Vout if
current can flow backwards into
the output, as this can damage
the converter.
Protection diodes are required
for high capacitive loads.
Refer to R-5xxxA Datasheet (see
Optional Diode Protection Circuit)
for circuit suggestions.
R-7xxx
R-7xxxP_D
Series
2ADC R-723.3P/D R-725.0P/D R-726.5P/D R-729.0P/D R-7212P/D R-7215P/D
3ADC R-733.3P/D R-735.0P/D R-736.5P/D R-739.0P/D R-7312P/D R-7315P/D
4ADC R-743.3P/D R-745.0P/D R-746.5P/D
Vout (nominal) 3.3Vdc 5.0Vdc 6.5Vdc 9.0Vdc 12Vdc 15Vdc
Vout (adj) R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2
2.5 8.5KΩ
3.0 33KΩ470Ω
3.2 110KΩ1.6KΩ
3.3 2.2KΩ
3.4 36KΩ3.0KΩ
3.6 11KΩ4.7KΩ
3.9 4.7KΩ8.5KΩ
4.5 1.6KΩ30KΩ
4.9 820Ω220KΩ
5.0 680Ω11KΩ
5.1 560Ω28KΩ12KΩ
5.5 190Ω2.6KΩ20KΩ
6.0 47KΩ
6.5
7.0 560Ω13KΩ
8.0 330Ω31KΩ
9.0
10 2.2KΩ20KΩ
11 390Ω47KΩ
12
13 2.4KΩ36KΩ
14 390Ω76KΩ
15
16 2.6KΩ
17 860Ω
18
The product information and specifications are subject to change without prior notice. All products are designed for non-safety critical commercial and industrial applications.
The Buyer agrees to implement safeguards that anticipate the consequences of any failures that might cause harm, loss of life and/or damage property.