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R-531.8PA

P1-P3P4-P6
INNOLINE
DC/DC-Converter
with 3 year Warranty
R-5xxxA
EN-60950-1 Certified
2, 3, 4, 5 AMP
SIP12
Vertical
&
Horizontal
● Auto-sense
● Non-Isolated
● 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
● Continuous short circuit protection
(Short Circuit Input Current, Iin sc<50mA)
● Input voltage range 4.5V~18V
● Efficiency to 96%
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-521.2xA 4.5 – 18 1.2 1.0 – 3.0 2 83 79 75
R-521.8xA 4.5 – 18 1.8 1.1 – 4.5 2 88 85 82
R-522.5xA 4.5 – 18 2.5 1.6 – 5.5 2 91 88 86
R-523.3xA 4.5 – 18 3.3 1.6 – 5.5 2 92 90 89
R-525.0xA 6.5 – 18 5.0 3.0 – 5.5 2 95 93 92
R-531.2xA 4.5 – 18 1.2 1.0 – 3.0 3 85 84 82
R-531.8xA 4.5 – 18 1.8 1.1 – 4.5 3 89 88 86
R-532.5xA 4.5 – 18 2.5 1.6 – 5.5 3 92 91 89
R-533.3xA 4.5 – 18 3.3 1.6 – 5.5 3 94 93 92
R-535.0xA 6.5 – 18 5.0 3.0 – 5.5 3 96 95 94
R-541.2xA 4.5 – 18 1.2 1.0 – 3.0 4 82 81 79
R-541.8xA 4.5 – 18 1.8 1.1 – 4.5 4 87 86 85
R-542.5xA 4.5 – 18 2.5 1.6 – 5.5 4 91 89 88
R-543.3xA 4.5 – 18 3.3 1.6 – 5.5 4 93 92 91
R-545.0xA 6.5 – 18 5.0 3.0 – 5.5 4 95 94 93
R-551.2xA 4.5 – 18 1.2 1.0 – 3.0 5 81 80 78
R-551.8xA 4.5 – 18 1.8 1.1 – 4.5 5 86 85 84
R-552.5xA 4.5 – 18 2.5 1.6 – 5.5 5 90 89 88
R-553.3xA 4.5 – 18 3.3 1.6 – 5.5 5 92 91 90
R-555.0xA 7.0 – 18 5.0 3.0 – 5.5 5 94 93 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
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). 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.
Description
RoHS
2011/65/EU
6/6
Refer to Application Notes
www.recom-power.com I-45REV: 1/2016
Characteristics Conditions Min. Typ. Max.
Output Voltage Range All Series 0.8 6.0V
Output Current R-52xxPA/DA 0.2 2.0A
R-53xxPA/DA 0.3 3.0A
R-54xxPA/DA 0.4 4.0A
R-55xxPA/DA 0.5 5.0A
Output Current Limit R-52xxPA/DA 2.5 3.0A
R-53xxPA/DA 3.75 4.25A
R-54xxPA/DA 5.0 5.5A
R-55xxPA/DA 6.0 6.5A
Short Circuit Input Current All Series 50mA
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) R-52xxPA/DA 0.25 0.5%
R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 0.5 1.0%
Load Regulation (10 to 100% full load) R-52xxPA/DA 0.5 1.0%
R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 1.0 2.0%
Ripple & Noise R-52xxPA/DA 40mVp-p 70mVp-p
R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 80mVp-p 120mVp-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 18V
(positive logic) Low (Power OFF) 0.8V
Remote Off Input Current Remote ON/OFF low level 100µA
Max capacitance Load with normal start-up time, no external diodes 300µF
with <1 second start up time + diode protection circuit 6800µF
Switching Frequency 270 300 330kHz
Quiescent Current Vin = min. to max. at 0% load 20mA
Operating Temperature Range -40°C +85°C
Storage Temperature Range -40°C +125°C
Case Material Non-Conductive Black Plastic
Potting Material Epoxy (UL94V-0)
Internal Power Dissipation Io x Vo x (1-Efficiency) 1.4W
Package Weight 9g
Packing Quantity 15 pcs per Tube
MTBF (Nominal Vout, 100% load) Tamb. = +25°C 749 x 10³ hours
Tamb. = +85°C 150 x 10³ hours
EN General Safety Report: SPCLVD1301028-1 EN60950-1:2006 + A12:2011
R-5xxxA
R-5xxxPA_DA
Series
Specifications (refer to the standard application circuit, Ta: 25°C)
INNOLINE
DC/DC-Converter
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)
100µF for R-52xxPA/DA, R-53xxPA/DA and R-54xxPA/DA or 220µF 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).
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(P
D)follows the equation:
P
D = Io × Vo × (1-η)
Io = P
D / Vo × (1-η)
Where P
D = Internal power dissipation
Io = Output current
Vo = Output voltage
η = Efficiency
Example: R-545.0P , at Vin = 18Vdc , Vo = 5Vdc ,η=93% (see "Selection Guide" table)
(a) When Ta = 60°C , P
D = 1.4 Watt (see adjacent diagram)
Io = 1.4(W) / 5(V) × (1-0.93) = 4(A)
(b) When Ta = 85°C , P
D = 1 Watt (see adjacent diagram)
Io = 1(W) / 5(V) × (1-0.93) = 2.857(A)
(c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table)
When Ta = 85°C , P
D = 1 Watt (see adjacent diagram)
Io = 1(W) / 5(V) × (1-0.94) =3.33(A)
}
Detailed Information see
Application Notes chapter "MTBF"
I-46 www.recom-power.comREV: 1/2016
R-5xxxA
R-5xxxPA_DA
Series
Standard Application Circuit
INNOLINE
DC/DC-Converter
Vout
Com
Vin
TTL
Com
2, 3, 4 9, 10
R-52XX
R-53XX
R-54XX
R-55XX
R1
(Adjust down)
R2
(Adjust up)
12
5, 6, 7,8
1µF
(Optional)
1
C1
OFF
ON
Q1
C2 (Required)
100µF,
ESR= 150mW max.)
(see Note 1)
11
Com
ON/OFF
Control
Q1
C1
100µF/25V
(REQ`D)
Vin
1
C2-1
100µF/10V
(REQ`D)
C2-2
100µF/10V
(REQ`D)
Com
Vout
must be connected
together
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
U2
U1
1
12
1
12
U1
U2
Keep 2mm to 5mm distance
between both converters
Component side
1
U1
U2
To Load
C1
1
12
12
C2-1
+Vin
C2-2
Com
Com
+Vout
Sense
Solder side
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.
Add a blocking diode to
Vout if current can flow
backwards into the out-
put, as this can damage
the converter..
www.recom-power.com I-47REV: 1/2016
P1-P3P4-P6

R-531.8PA

Mfr. #:
Buy R-531.8PA
Manufacturer:
RECOM Power
Description:
Non-Isolated DC/DC Converters DC/DC REG 4.5-18Vin 1.1-4.5out
Lifecycle:
New from this manufacturer.
Delivery:
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