Recom
Recom


R-723.3P

SIP12 Vertical & Horizontal


R-723.3P Datasheet PDF
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Features
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<50mA)
Input voltage range 4.5V~28V
Efficiency to 97%
Selection Guide
Part
Number
SIP12
Input
Range
(V)
R-723.3x
4.5 – 28
R-725.0x
6.5 – 28
R-726.5x
8.5 – 28
R-729.0x
12 – 28
R-7212x
15 – 28
R-7215x
19 – 28
R-733.3x
4.5 – 28
R-735.0x
6.5 – 28
R-736.5x
8.5 – 28
R-739.0x
12 – 28
R-7312x
15 – 28
R-7315x
19 – 28
R-743.3x
4.5 – 28
R-745.0x
6.5 – 28
R-746.5x
8.5 – 28
Nominal
Vout Output
Output Voltage Adjust Range Current
(V) (V) (A)
Efficiency (%)
Min. Vin 12V Max. Vin
3.3
2.5 – 5.5
2
95 93 89
5.0
3.0 – 6.0
2
96 95 91
6.5
5.0 – 8.0
2
97 96 93
9.0
7.0 – 11
2
96 - 93
12
10 – 14
2
97 - 95
15
13 – 17
2
97 - 96
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3.3
2.5 – 5.5
3
94 93 89
5.0
3.0 – 6.0
3
95 95 92
6.5
5.0 – 8.0
3
97 96 93
9.0
7.0 – 11
3
96 - 94
12
10 – 14
3
97 - 96
15
13 – 17
3
97 - 96
3.3
2.5 – 5.5
4
93 92 88
5.0
3.0 – 6.0
4
95 94 91
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
INNOLINE
DC/DC-Converter
R-7xxxP_D
Series
2, 3, 4 AMP
SIP12
Vertical &
Horizontal
Description
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 effi-
ciencies up to 97%. Short circuit protection with crowbar function reduces the short circuit current to
under 50mA of input current.
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27-March-2007
165


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INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
Characteristics
Output Voltage Range
Output Current
Output Current Limit
Short Circuit Input Current
Short Circuit Protection
Output Voltage Accuracy (At 100% Load)
Line Voltage Regulation (Vin = min. to max. at full load)
Load Regulation (10 to 100% full load)
Ripple & Noise
Transient Response (see note 1)
Remote ON / OFF (see note 2)
Switching Frequency
Shutdown current
Quiescent Current
Operating Temperature Range
Operating Case Temperature
Storage Temperature Range
Thermal Impedance
Internal Power Dissipation
MTBF (Nominal Vout, 100% load)
Conditions
All Series
R-72xxP/D
R-73xxP/D
R-74xxP/D
R-72xxP/D
R-73xxP/D
R-74xxP/D
All Series
All Series
All Series
All Series
All Series
50% Load Change –
Vout Over / Undershoot
Open or High (Power ON)
Low (Power OFF)
ON / OFF Pin pulled low
Vin = min. to max. at 0% load
Natural Convection
Ta < 60°C
Tamb. = +25°C
Tamb. = +85°C
R-7xxxP_D
Series
Min.
2.5
0.2
0.3
0.4
4.5
270
-40°C
-40°C
Typ. Max.
17V
2.0A
3.0A
4.0A
2.5 3.0A
3.75 4.25A
5.0 5.5A
50 100mA
Continuous, automatic recovery
±1% ±2%
0.5 1.0%
0.5 1.0%
40mVp-p
70mVp-p
100µs
200µs
100mV
28V
0.8V
300 330kHz
100µA
30mA
+85°C
+110°C
+125°C
25°C/W
1.4W
749 x 10³hours
150 x 10³hours
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.
Standard Application Circuit
Vin
OFF 1µF
ON (Optional)
TTL
2, 3, 4
C1 1
Q1
R-72XX
R-73XX
R-74XX
5, 6, 7,8
Com
9, 10, 11
R1
(Adjust down)
12
R2
(Adjust up)
Vout
C2
100µF/10V
(REQ`D)
Add a blocking diode to
Vout if current can flow
backwards into the out-
put, as this can damage
the converter..
Com
166
27-March-2007
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INNOLINE
DC/DC-Converter
Output Current vs Input Voltage
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)
R-7xxxP_D
Series
90
85
80
60
40
20
0 0.5 1 1.4
Internal Power Dissipation (W)
Characteristics
R-72xx / R-73xx
Ripple VS Vin
50
25
Vo=15V
Vo=12V
Vo=6.5V
Vo=9V
Vo=5V
Vo=3.3V
( Vo )
5 10 15 20 25 28
Vin ( V )
Ripple Vs Vin
R-74xx
Ripple VS Vin
100
6.5V
50 5V
3.3V
( Vo )
5 10 15 20 25 28
Vin ( V )
Ripple Vs Vin
R-72xx / R-73xx
Efficiency VS Vin
100
50
15V
6.5V
5V
3.3V
( Vo )
5 10 15 20 25 28
Vin ( V )
Efficiency Vs Vin
R-74xx
Efficiency VS Vin
100
50
Vo=6.5V
Vo=5V
Vo=3.3V
( Vo )
5 10 15 20 25 28
Vin ( V )
Efficiency Vs Vin
R-72xx / R-73xx / R-74xx
Efficiency / Load Vin=Min
100
90
80
70
1 23
Efficiency Vs Iout (Vin=Min)
4
6.5V
5.0V
3.3V
( Vo )
R-72xx / R-73xx / R-74xx
Efficiency / Load Vin=Max
100
90
80
60
1 23
Efficiency Vs Iout (Vin=Max)
4
15V
5.0V
3.3V
( Vo )
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R-723.3P Datasheet PDF
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INNOLINE
DC/DC-Converter
Package Style and Pinning (mm)
R-7xxxP_D
Series
SIP12 PIN Package
3rd angle
projection
32.20
9.1
32.20
9.1
RECOM
15.00 R - 7 2 3 . 3 P
1 2 3 4 5 6 7 8 9 10 11 12
4.0
2.13 0.7 2.54
RECOM
15.00 R - 7 2 3 . 3 D
1 2 3 4 5 6 7 8 9 10 11 12
0.2
2.13
0.2
0.7 2.54
Bottom
View
0.7
Bottom
View
Pin Connections
Pin #
1
2, 3, 4
5, 6, 7, 8
9 , 10, 11
12
Name
ON / OFF
Vin
GND
Vout
Vout-Adj
Tolerance: ± 0.25 mm
Description
Input pin : Active low (less than 0.8V) to disable the device
Power input
Input and output ground (common)
Power output
With external resistors R1,R2 to selected output voltage
0.7
4.0
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INNOLINE
DC/DC-Converter
Table 1: Adjustment Resistor Values
2A DC
3A DC
4A DC
Vout (nominal)
Vout (adj)
2.5
3.0
3.2
3.3
3.4
3.6
3.9
4.5
4.9
5.0
5.1
5.5
6.0
6.5
7.0
8.0
9.0
10
11
12
13
14
15
16
17
18
R-723.3P/D
R-733.3P/D
R-743.3P/D
3.3VDC
R1 R2
8.5K
33K
110K
36K
11K
4.7K
1.6K
820
680
560
190
R-725.0P/D
R-735.0P/D
R-745.0P/D
5.0VDC
R1 R2
470
1.6K
2.2K
3.0K
4.7K
8.5K
30K
220K
28K
2.6K
R-726.5P/D
R-736.5P/D
R-746.5P/D
6.5VDC
R1 R2
11K
12K
20K
47K
560
330
R-7xxxP_D
Series
R-729.0P/D
R-739.0P/D
9.0VDC
R1 R2
R-7212P/D
R-7312P/D
12VDC
R1 R2
R-7215P/D
R-7315P/D
15VDC
R1 R2
13K
31K
2.2K
390
20K
47K
2.4K
390
36K
76K
2.6K
860
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169




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