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R-532.5PA Datasheet Preview

R-532.5PA Datasheet

DC/DC-Converter

No Preview Available !

Features
Switching
Regulator
• Non-isolated
• Synchronous rectification design
• Adjustable output voltage
• 2, 3, 4 & 5AMP adjustable positive step down
integrated switching regulator
• Over load protection
• Continuous short circuit protection
• Efficiency up to 96%
DC/DC Converter
R-5xxxPA_DA
Description
The R-5xxxA series is a high performance 1.2V to 5.5V, 2Amp to 5Amp, 12-Pin SIP (single in-line
package) integrated switching regulator (ISR). The synchronous - rectified design yields excellent
efficiencies up to 96%. Short circuit protection reduces the short circuit input current to under 50mA.
Autosense function compensates for any losses in long circuit loops.
Selection Guide
Part Input Output Vout Output Efficiency Max. Capacitive
Number Voltage Range Voltage Adjust Range (1) Current @ min Vin @ max. Vin Load (2)
[VDC] [VDC] [VDC]
[A] [%] 12V [%]
[µF]
R-521.2xA 4.5 - 18 1.2 1.0 - 3.0
2
83 79 75
300/6800
R-521.8xA 4.5 - 18 1.8 1.1 - 4.5
2
88 85 82
300/6800
R-522.5xA 4.5 - 18 2.5 1.6 - 5.5
2
91 88 86
300/6800
R-523.3xA 4.5 - 18 3.3 1.6 - 5.5
2
92 90 89
300/6800
R-525.0xA 6.5 - 18 5.0 3.0 - 5.5
2
95 93 92
300/6800
R-531.2xA 4.5 - 18 1.2 1.0 - 3.0
3
85 84 82
300/6800
R-531.8xA 4.5 - 18 1.8 1.1 - 4.5
3
89 88 86
300/6800
R-532.5xA 4.5 - 18 2.5 1.6 - 5.5
3
92 91 89
300/6800
R-533.3xA 4.5 - 18 3.3 1.6 - 5.5
3
94 93 92
300/6800
R-535.0xA 6.5 - 18 5.0 3.0 - 5.5
3
96 95 94
300/6800
R-541.2xA 4.5 - 18 1.2 1.0 - 3.0
4
82 81 79
300/6800
R-541.8xA 4.5 - 18 1.8 1.1 - 4.5
4
87 86 85
300/6800
R-542.5xA 4.5 - 18 2.5 1.6 - 5.5
4
91 89 88
300/6800
R-543.3xA 4.5 - 18 3.3 1.6 - 5.5
4
93 92 91
300/6800
R-545.0xA 6.5 - 18 5.0 3.0 - 5.5
4
95 94 93
300/6800
R-551.2xA 4.4 - 18 1.2 1.0 - 3.0
5
81 80 78
300/6800
R-551.8xA 4.5 - 18 1.8 1.1 - 4.5
5
86 85 84
300/6800
R-552.5xA 4.5 - 18 2.5 1.6 - 5.5
5
90 89 88
300/6800
R-553.3xA 4.5 - 18 3.3 1.6 - 5.5
5
92 91 90
300/6800
R-555.0xA 7.0 - 1.8
5.0
3.0 - 5.5
5
94 93 92
300/6800
2,3,4,5 Amp
SIP12
Vertical &
Horizontal
Single Output
IEC/EN60950-1 certified
Notes:
Note1: Vin-Vout 1.5V~4.0V depending on Vout if adjust function is used
Note2: please refer to basic characteristics
Model Numbering
R-5_ __ xA
Output Current (A)
nom. Output Voltage
Pinning (3)
Notes:
Note3: x can be „P“= vertical through hole
x can be „D“ = bent for horizontal through hole mounting
Ordering Examples:
R-553.3PA Iout= 5A
R-522.5DA Iout= 2A
nom. Vout= 3.3VDC P= vertical through hole
nom. Vout= 2.5VDC D= bent for horizontal through hole mounting
www.recom-power.com
REV.: 4/2018
I-1




RECOM

R-532.5PA Datasheet Preview

R-532.5PA Datasheet

DC/DC-Converter

No Preview Available !

R-5xxxPA_DA
DC/DC Converter
Specifications (refer to standard application circuit, Ta= 25°C)
Series
BASIC CHARACTERISTICS
Parameter
Quiescent Current
Internal Power Dissipation
Output Current Limit
Minimum Load
ON/OFF CTRL (4)
Input Current of CTRL Pin
Internal Operating Frequency
Output Ripple and Noise
Maximum Capacitive Load
Condition
min. Vin to max.
ta<60°C
R-52xx
R-53xx
R-54xx
R-55xx
DC-DC ON
DC-DC OFF
DC-DC OFF
R-52xx
R-53xx & R-54xx & R-55xx
normal start-up time, no external diodes
<1 second start-up time + diode protection circuit
Min.
10%
270kHz
Typ.
2.5A
3.75A
5.0A
6.0A
Max.
20mA
1.4W
3.0A
4.25A
5.5A
6.5A
Open or high, 4.5V min. / 18V max.
Low (Power OFF) 0.8V max.
100µA
300kHz
330kHz
40mVp-p
80mVp-p
70mVp-p
120mVp-p
300µF
6800µF
Notes:
Note4: ON/OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET
How to calculate the max output current
The internal power dissipiation (PD ) follows the equation:
PD= Iout x Vout x (1-Effmax Vin )
Iout=
PD
Vout x (1-Effmax Vin )
100
85
80
60
40
20
Example: R-545.0P
Calculation 1:
Vin = 18V
Vout = 5V
Effmax Vin = 93%
PD = 1.4W
TAmbient = 60°C
Iout=
1.4W
5V x (1-0.93 )
= 4.0A
0
0 0.5 1 1.4
Internal Power Dissipation [W]
Calculation 2:
Vin = 18V
Vout = 5V
Effmax Vin = 93%
PD = 1W
TAmbient = 85°C
Iout=
1W
5V x (1-0.93 )
= 2.857A
www.recom-power.com
Calculation 3:
Vin = 12V
Effmax Vin = 94%
PD = 1.0W
TAmbient = 85°C
Iout=
1W
5V x (1-0.94 )
continued on next page
REV.: 4/2018
= 3.33A
I-2


Part Number R-532.5PA
Description DC/DC-Converter
Maker RECOM
Total Page 8 Pages
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