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Features

Auto-sense Non-Isolation Synchronous rectification design Adjustable Output voltage 2, 3, 4 & 5AMP 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
INNOLINE
DC/DC-Converter
R-5xxxPA _DA Series
2, 3, 4, 5 AMP SIP12 Vertical & Horizontal
Continuous short circuit protection (Short Circuit Input Current, Iin<50mA) Input voltage range 4.5V~18V Efficiency to 96%
Selection Guide
Part Number SIP12 R-521.2xA R-521.8xA R-522.5xA R-523.3xA R-525.0xA R-531.2xA R-531.8xA R-532.5xA R-533.3xA R-535.0xA R-541.2xA R-541.8xA R-542.5xA R-543.3xA R-545.0xA R-551.2xA R-551.8xA R-552.5xA R-553.3xA R-555.0xA Inpu Range (V) 4.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 6.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 6.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 6.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 4.5 - 18 7.0 - 18 Nominal Output Voltage (V) 1.2 1.8 2.5 3.3 5.0 1.2 1.8 2.5 3.3 5.0 1.2 1.8 2.5 3.3 5.0 1.2 1.8 2.5 3.3 5.0 Vout Adjust Range (V) 1.0 - 3.0 1.1 - 4.5 1.6 - 5.5 1.6 - 5.5 3.0 - 5.5 1.0 - 3.0 1.1 - 4.5 1.6 - 5.5 1.6 - 5.5 3.0 - 5.5 1.0 - 3.0 1.1 - 4.5 1.6 - 5.5 1.6 - 5.5 3.0 - 5.5 1.0 - 3.0 1.1 - 4.5 1.6 - 5.5 1.6 - 5.5 3.0 - 5.5 Output Current (A) 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 min.Vin (%) 83 88 91 92 95 85 89 92 94 96 82 87 91 93 95 81 86 90 92 94 Efficiency 12V max.Vin (%) (%) 79 85 88 90 93 84 88 91 93 95 81 86 89 92 94 80 85 89 91 93 75 82 86 89 92 82 86 89 92 94 79 85 88 91 93 78 84 88 90 92
Note: Vin -Vout 1.5V 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
Description
The R-5XXX series is a high performance 1.2V to 5.0V , 2Amp to 5Amp,12-Pin SIP (single in-line package) integrated switching regulator (ISR). Synchronuous - rectified design yields excellent efficiencies up to 96%. Short circuit protection with crowbar function to reduce the short circuit input current to under 50mA. Autosense function compensates for any losses in long circuit loops.
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INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25C)
Characteristics Output Voltage Range Output Current Conditions All Series R-52xxPA/DA R-53xxPA/DA R-54xxPA/DA R-55xxPA/DA R-52xxPA/DA R-53xxPA/DA R-54xxPA/DA R-55xxPA/DA All Series At 100% Load All Series
R-5xxxPA_DA Series
Min. 0.8 0.2 0.3 0.4 0.5 2.5 3.75 5.0 6.0 Typ. Max. 6.0V 2.0A 3.0A 4.0A 5.0A 3.0A 4.25A 5.5A 6.5A 50mA Continuous, automatic recovery 1% 0.25 0.5 0.5 1.0 40mVp-p 80mVp-p 100s 4.5 2% 0.5% 1.0% 1.0% 2.0% 70mVp-p 120mVp-p 200s 100mV 18V 0.8V 100A 300 330kHz 20mA -40C -40C Io x Vo x (1-Efficiency) Tamb. = +25C Tamb. = +85C +85C +125C 1.4W 749 x 10 hours 150 x 10 hours R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 50% Load Change Vout Over / Undershoot Open or High (Power ON) Low (Power OFF) Remote ON/OFF low level Vin = min. to max. at 0% load
Output Current Limit
Short Circuit Input Current Short Circuit Protection Output Voltage Accuracy 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) (positive logic) Remote Off Input Current Switching Frequency Quiescent Current Operating Temperature Range Storage Temperature Range Internal Power Dissipation MTBF (Nominal Vout, 100% load)
270
Notes:
1. Requires an electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be placed as close as possible to the output pins) 100F for R-52xxPA/DA, R-53xxPA/DA and R-54xxPA/DA or 220F for R-55xxPA/DA. 2. ON / OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET. 3. Output Current vs. Input Voltage (see graph below).
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INNOLINE
DC/DC-Converter
Standard Application Circuit
R-5xxxPA_DA Series
11
Vin TTL OFF ON Com
1F (Optional)
2, 3, 4 C1 1
R-52XX R-53XX R-54XX R-55XX
5, 6, 7,8
(Adjust down)
R1
9, 10
Vout
C2 (Req'd)
12
(Adjust up)
Q1
R2
100F/10V or 220F/10V (see Note 1)
Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter..
Com
Parallel Application Circuit
The R-52xx, R-53xx, R-54xx series can be used in parallel to upgrade the output current capacity for the same output voltage. For example, the R-543.3PA can parallel up with another R-554.3PA to give up to 8 amps or with the R-533.3PA or R-523.3PA types to give output currents of up to 7 Amps or 6 Amps. The R-55xx series cannot be paralleled.
Vin ON/OFF Control Com
C2-2 100F/10V (REQD)
Q1
C1 100F/25V (REQD)
1 2 3 4
U1
5 6 7
12 11 10 89
C2-1 100F/10V (REQD)
Vout
Com
4 3 2 1
5
6
7
8
U2
9 10 11 12
must be connected together
Component side
Solder side
Com +Vin 12 C1 1 U1 C2-1
1
12 U1
1 Keep 2mm to 5mm distance between both converters
12 U2
12 C2-2 +Vout Sense Com
1
U2
To Load
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DC/DC-Converter
Output Current vs Input Voltage
R-5xxxPA_DA Series
How to calculate the max output current The internal power dissipation(PD)follows the equation: PD = Io x Vo x (1-) Io = PD / Vo x (1-) Where PD = Internal power dissipation Io = Output current Vo = Output voltage = Efficiency Example: R-545.0P , at Vin = 18Vdc , Vo = 5Vdc ,=93% (see "Selection Guide" table) (a) When Ta = 60C , PD = 1.4 Watt (see adjacent diagram) Io = 1.4(W) / 5(V) x (1-0.93) = 4(A) (b) When Ta = 85C , PD = 1 Watt (see adjacent diagram) Io = 1(W) / 5(V) x (1-0.93) = 2.857(A) (c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table) When Ta = 85C , PD = 1 Watt (see adjacent diagram) Io = 1(W) / 5(V) x (1-0.94) =3.33(A)
Ambient Temperature (C)
90 85 80 60 40 20 0 0.5 1 1.4
Internal Power Dissipation (W)
Characteristics
R-53xx / R-54xx Output Voltage Line Regulation VS Vout
1
R-52xx / R-55xx Output Voltage Line Regulation VS Vout
1
Line Regulation (%)
Line Regulation (%)
0 1.8 1.2 Output Voltage (V) 2.3 3.3 5.0
0.5
0.5
0
1.8 1.2 Output Voltage (V)
2.3
3.3
5.0
R-53xx / R-54xx Intput Voltage Load Regulation VS Vin
2.0 1.5 1.2V 1.8V 2.5V 3.3V 5.0V
R-52xx / R-55xx Intput Voltage Load Regulation VS Vin
2.0 1.5
Load Regulation (%)
1.0 0.5
Load Regulation (%)
1.0 0.5
1.2V 1.8V 2.5V 3.3V 5.0V 0
0
5 Input Voltage (V)
10
15
20
5 Input Voltage (V)
10
15
20
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INNOLINE
Characteristics
DC/DC-Converter
R-5xxxPA_DA Series
R-52xx Output Current Efficiency vs Iout (Vin = Min)
100 5.0V 3.3V 2.5V 1.8V 5.0V 3.3V 2.5V 1.8V 1.2V
R-53xx / R-54xx / R-55xx Output Current Efficiency vs Iout (Vin = Min)
100
90
90
Efficiency (%)
80
Efficiency (%)
1.2V
80
70
1 2 Output Current (A)
3
4
5
70
0.5 1.0 Output Current (A)
1.5
2.0
R-53xx / R-54xx / R-55xx Output Current Efficiency vs Iout (Vin = 18V)
100 5.0V 3.3V 2.5V
R-52xx Output Current Efficiency VS Iout (Vin = 18V)
100 90 80 70 5.0V 3.3V 2.5V 1.8V 1.2V
90
Efficiency (%)
80
Efficiency (%)
1.8V 1.2V
60 50 40 0.5 1.0 Output Current (A) 1.5 2.0
70
1 2 Output Current (A)
3
4
5
Package Style and Pinning (mm)
SIP12 PIN Package
3rd angle projection 9.1 32.20 9.1
32.20
15.00
RECOM R - 5 2 1 . 2 PA
1 2 3 4 5 6 7 8 9 10 11 12
15.00
RECOM R-521.2DA
1 2 3 4 5 6 7 8 9 10 11 12
0.2
4.0 2.13 0.7 2.54 0.2
2.13
0.7
2.54
Bottom View
Bottom View
0.7 4.0
0.7
Pin Connections Pin # 1 2, 3, 4 5, 6, 7, 8 9 , 10 11 12 Tolerance: 0.25 mm Name ON / OFF Vin GND Vout Vout (Auto Sense) Vout-Adj Description Input pin : Active low (less than 0.8V) to disable the device Power input Input and output ground (common) Power output If unused this pin must be connected to Pin 9 and 10 With external resistors R1,R2 to selected output voltage
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Table 1: Adjustment Resistor Values
2Adc 3Adc 4Adc 5Adc Vout (nominal) Vout (adj) 0.8 (V) 0.9 (V) 1.0 (V) 1.1 (V) 1.2 (V) 1.3 (V) 1.5 (V) 1.6 (V) 1.7 (V) 1.8 (V) 1.9 (V) 2.0 (V) 2.4 (V) 2.5 (V) 2.6 (V) 3.0 (V) 3.2 (V) 3.3 (V) 3.4 (V) 3.6 (V) 3.9 (V) 4.5 (V) 4.9 (V) 5.0 (V) 5.1 (V) 5.5 (V) 37K 11.5K 8.2K 6.5K 5.2K 4.3K 3.6K 2.1K 1.8K 1.65K 1.05K 36K 1.8K 5.2K 4.3K 3.6K 2.1K 1.65K 1.5K 1.35K 1.07K 780 390 740 3.9K 13K 1.05K 2.1K 3.7K 10K 18K 41K 270 750 2.1K 3.0K 4.1K 5.6K 7.5K 10.5K 82K R1 R-521.2PA/DA R-531.2PA/DA R-541.2PA/DA R-551.2PA/DA 1.2Vdc R2 R1 R-521.8PA/DA R-531.8PA/DA R-541.8PA/DA R-551.8PA/DA 1.8Vdc R2 R1
R-5xxxPA_DA Series
R-522.5PA/DA R-532.5PA/DA R-542.5PA/DA R-552.5PA/DA 2.5Vdc R2 R1 R-523.3PA/DA R-533.3PA/DA R-543.3PA/DA R-553.3PA/DA 3.3Vdc R2 R1 R-525.0PA/DA R-535.0PA/DA R-545.0PA/DA R-555.0PA/DA 5.0Vdc R2
390 750 1.2K 1.7K 2.2K 2.8K 6.8K 8.5K 33K 6.2K 4.1K 3.4K 2.9K 2.2K 1.4K 650 350 290 220 39 36K 11K 4.7K 1.6K 820 680 560 190 28K 2.6K 10.5K 33K 110K 470 1.6K 2.2K 3.0K 4.7K 8.5K 30K 220K
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