Datasheet
Input Voltage 3.5 V to 36 V
Output SW Current 4 A / 2.5A / 1.25A
1ch Step-Down Switching Regulator
BD906xx-C series
General Description
Key Specifications
BD906xx-C series is a step-down switching regulator
with integrated POWER MOS FET and have the
capability to withstand high input voltage, providing a free
setting function of operating switching frequency with
external resistor. This switching regulator features a wide
input voltage range (3.5 V to 36 V, Absolute maximum 42
V) and operating temperature range (-40 °C to +125 °C).
Furthermore, an external synchronization input pin
enables synchronous operation with external clock.
Input Voltage Range :
3.5 V to 36 V
(Initial startup is over 3.9 V)
0.8 V to VIN
4 A / 2.5 A / 1.25 A (Max)
50 kHz to 600 kHz
Output Voltage Range :
Output Switch Current :
Switching Frequency :
Reference Voltage Accuracy :±2% (-40 °C to +125 °C)
Shutdown Circuit Current : 0 µA (Typ)
Operating Temperature Range(Ta) : -40 °C to +125 °C
Package
W(Typ) x D(Typ) x H(Max)
9.395mm x 10.540mm x 2.005mm
4.90mm x 6.00mm x 1.00mm
Features
HRP7
HTSOP-J8
AEC-Q100 Qualified (Note 1)
Integrated Pch POWER MOS FET
Low Dropout: 100 % ON Duty Cycle
External Synchronization Function
Soft Start Function: 1.38 ms (fSW = 500 kHz)
Current Mode Control
Over Current Protection
Low Supply Voltage Error Prevention
Thermal Shut Down Protection
Short Circuit Protection
High power HRP7 package mounted
Compact and High power HTSOP-J8 package
mounted
Load dump up to 42 V.
HRP7
HTSOP-J8
(Note 1 : Grade 1)
Applications
Automotive Battery Powered Supplies
(Cluster Panels, Car Multimedia)
Industrial / Consumer Supplies
Other electronic equipment
Typical Application Circuit
L1
PVIN
SW
FB
VC
VO
D1
CO
R1
R2
C2
VIN
VIN
Cbulk
CIN
RT
CRT
RRT
VEN / SYNC
EN / SYNC
R3
C1
GND
○Product structure:Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
www.rohm.com
TSZ02201-0T1T0AL00130-1-2
15.Sep.2015 Rev.005
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