Features
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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 %
INNOLINE
DC/DC-Converter
with 3 year Warranty
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). 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.
2, 3, 4, 5 AMP
SIP12
Vertical
&
Horizontal
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
Input
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
Vout
Output
Output Voltage Adjust Range Current
(V)
(V)
(A)
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
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
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
Efficiency
min.Vin 12V max.Vin
(%)
(%)
(%)
83
88
91
92
95
85
89
92
94
96
82
87
91
93
95
81
86
90
92
94
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
2011/65/EU
6/6
RoHS
EN-60950-1 Certified
R-5xxxA
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
Refer to Application Notes
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REV: 1/2016
I-45
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
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
R-5xxxPA_DA
Series
Min.
0.8
0.2
0.3
0.4
0.5
2.5
3.75
5.0
6.0
Continuous, automatic recovery
±1%
0.25
0.5
0.5
1.0
40mVp-p
80mVp-p
100µs
Typ.
Max.
6.0V
2.0A
3.0A
4.0A
5.0A
3.0A
4.25A
5.5A
6.5A
50mA
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
Max capacitance Load
Switching Frequency
Quiescent Current
Operating Temperature Range
Storage Temperature Range
Case Material
Potting Material
Internal Power Dissipation
Package Weight
Packing Quantity
MTBF (Nominal Vout, 100% load)
EN General Safety
R-5xxxA
At 100% Load 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
R-52xxPA/DA
R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA
50% Load Change
Vout Over / Undershoot
Open or High (Power ON)
4.5
Low (Power OFF)
Remote ON/OFF low level
with normal start-up time, no external diodes
with <1 second start up time + diode protection circuit
270
Vin = min. to max. at 0% load
-40°C
-40°C
Io x Vo x (1-Efficiency)
Tamb. = +25°C
Detailed Information see
Application Notes chapter "MTBF"
Tamb. = +85°C
Report: SPCLVD1301028-1
}
±2%
0.5%
1.0%
1.0%
2.0%
70mVp-p
120mVp-p
200µs
100mV
18V
0.8V
100µA
300µF
6800µF
300
330kHz
20mA
+85°C
+125°C
Non-Conductive Black Plastic
Epoxy (UL94V-0)
1.4W
9g
15 pcs per Tube
749 x 10³ hours
150 x 10³ hours
EN60950-1:2006 + A12:2011
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
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)
I-46
REV: 1/2016
Ambient Temperature (°C)
90
85
80
60
40
20
0
0.5
1
1.4
Internal Power Dissipation (W)
www.recom-power.com
INNOLINE
DC/DC-Converter
Standard Application Circuit
R-5xxxPA_DA
Series
11
2, 3, 4
1µF
(Optional)
C1
1
Vin
TTL
OFF
ON
Com
R-52XX
R-53XX
R-54XX
R-55XX
5, 6, 7,8
(Adjust down)
R1
9, 10
Vout
C2 (Required)
12
(Adjust up)
Q1
R2
100µF,
ESR= 150mW max.)
(see Note 1)
Add a blocking diode to
Vout if current can flow
backwards into the out-
put, 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.
1
2
3
4
Vin
ON/OFF
Control
Com
Q1
C1
100µF/25V
(REQ`D)
U1
5
6
7
12
11
10
8 9
C2-1
100µF/10V
(REQ`D)
Vout
Com
C2-2
100µF/10V
(REQ`D)
R-5xxxA
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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REV: 1/2016
I-47
INNOLINE
DC/DC-Converter
Characteristics
R-53xx / R-54xx
Output Voltage Line Regulation VS Vout
1
R-5xxxPA_DA
Series
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
R-5xxxA
R-53xx / R-54xx / R-55xx
Output Current Efficiency vs Iout (Vin = Min)
100
5.0V
90
3.3V
2.5V
1.8V
R-52xx
Output Current Efficiency vs Iout (Vin = Min)
100
5.0V
3.3V
2.5V
1.8V
1.2V
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 (%)
Efficiency (%)
80
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
I-48
REV: 1/2016
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