Datasheet

2/7
2011.08 - Rev. A
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
Data Sheet
BP5275-18 / BP5275-25 / BP5275-33 / BP5275-50
BP5275−18 (Unless otherwise noted : Ta=25°C, Vin=12V, lo1=500mA)
Parameter Symbol Unit ConditionsMin. Typ. Max.
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Minimum start-up time
Conversion efficiency
Input voltage
Output voltage
Output current 1
Output current 2
Line regulation
Load regulation
Output ripple voltage
Minimum start-up time
Conversion efficiency
Vin 4
1.75
0
0
4
65
12
1.80
5
10
5
7
73
14
1.85
500
800
50
50
80
V
V
O V
I
O1
Vl
I
O2
mA
mA
Vr
mV
Vp
Ts
f MHz1.5
mV
msec
I
O=0 to 500mA
Vin=0V 3V,Ro=3.6Ω
Vin=4 to 14V
mV
P-P


%
I
O1=0mA







DC
1
1
BP5275-25 (Unless otherwise noted : Ta=25°C, Vin=12V, lo1=500mA)
1 Derating required according to the input voltage and ambient temperature.
Parameter Symbol Unit ConditionsMin. Typ. Max.
Vin 4
2.45
0
0
4
73
12
2.50
5
10
5
7
78
14
2.55
500
800
50
50
50
V
V
O V
I
O1
Vl
I
O2
mA
mA
Vr
mV
Vp
Ts
mV
msec
I
O1=0 to 500mA
Vin=3V 4V,Ro=5Ω
Vin=4 to 14V
mV
P-P


%
I
O1=0mA






DC
1
1
1 Derating required according to the input voltage and ambient temperature.
With heat sink
With heat sink
Block diagram
Electrical characteristics
Operation frequency
f MHz1.5

Operation frequency
Control
Circuit
1 2 3
V
AA
VV
Vin
Vin
GND
Vout
GND
Io
Measurement circuit