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Rohm Semiconductor Electronic Components Datasheet

BD90640EFJ-C Datasheet

1ch Step-Down Switching Regulator

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Datasheet
Input Voltage 3.5 V to 36 V
Output SW Current 4 A / 2.5A / 1.25A
1ch Step-Down Switching Regulator
BD906xx series
General Description
BD906xx 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 frequency with external resistor.
This switching regulator features a wide input voltage
range (3.5V to 36V, Absolute maximum 42V) and
operating temperature range (-40 °C to +125 °C).
Furthermore, an external synchronization input pin
enables synchronous operation with external clock.
Features
Integrated Pch POWER MOS FET
Low Dropout: 100 % ON Duty Cycle
External Synchronization Enabled
Soft Start Function: 1.38 ms (f = 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
AEC-Q100 Qualified
Load dump up to 42V.
Applications
Automotive Battery Powered Supplies
(Cluster Panels, Car Multimedia)
Industrial / Consumer Supplies
Other electronic equipment
Key Specifications
Input Voltage Range:
3.5 V to 36 V
(Initial startup is over 3.9 V)
Output Voltage Range:
0.8V to VIN
Output Switch Current:
4 A / 2.5 A / 1.25 A (Max)
Switching Frequency:
50 kHz to 600 kHz
Reference Voltage Accuracy: ±2% (-40 °C to +125 °C)
Shutdown Circuit Current:
0 µA (Typ)
Operating Temperature Range: -40 °C to +125 °C
Package
HRP7
HTSOP-J8
W(Typ) x D(Typ) x H(Max)
9.395mm x 10.540mm x 2.005mm
4.90 mm x 6.00 mm x 1.00 mm
HRP7
HTSOP-J8
Typical Application Circuit
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
CVTSZ2211114001
This product has no designed protection against radioactive rays
1/34
TSZ02201-0T1T0AL00130-1-2
21.Nov.2014 Rev.004


Rohm Semiconductor Electronic Components Datasheet

BD90640EFJ-C Datasheet

1ch Step-Down Switching Regulator

No Preview Available !

BD906xx series
Lineup
Product
Name
HRP7
HTSOP-J8
BD90640HFP-C
BD90640EFJ-C
BD90620HFP-C
BD90620EFJ-C
Output Switch Current
4 A 2.5 A
Input Maximum Ratings
Input Range (Note 1)
42 V
3.5 V to 36 V
POWER MOS FET ON Resistance
0.16
Power
Dissipation
HRP7 (Note 2)
HTSOP-J8 (Note 3)
6.98 W
3.10 W
(Note 1) Initial startup is over 3.9 V
(Note 2) Reduce by 56 mW / °C, when mounted on 4-layer PCB of 114.3 mm × 76.2 mm × 1.6 mm.
2,3 inner layers and Copper foil area on the reverse side of PCB 74.2 mm × 74.2 mm
(Note 3) Reduce by 25 mW / °C, when mounted on 4-layer PCB of 114.3 mm × 76.2 mm × 1.6 mm.
2,3 inner layers and Copper foil area on the reverse side of PCB 74.2 mm × 74.2 mm
Datasheet
-
BD90610EFJ-C
1.25 A
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/34
TSZ02201-0T1T0AL00130-1-2
21.Nov.2014 Rev.004


Part Number BD90640EFJ-C
Description 1ch Step-Down Switching Regulator
Maker Rohm
Total Page 30 Pages
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