2ch DC/DC converter - ROHM
Description
System Power Supply ICs for TVs
Built-in FET Synchronous Rectification Type DC/DC converters H3RegTM Type
BD95830MUV
No.
11034EBT08
●Description
BD95830MUV is a 2ch switching regulator that can generate low output voltages (0.
8V to 5.
5V) at the large input voltage range (7.
5 to 15V).
Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistor.
The IC also incorporates a new technology called H3RegTM, a Rohm proprietary control method which facilitates ultra-high transient response against changes in load.
For protection and ease of use, the IC also incorporates soft start, and short circuit protection with timer latch functions.
This switching regulator is designed for power supplies for Digital AV Equipments.
●Features 1) 2ch H3RegTM DC/DC converter synchronous controller
2) Built-in N-MOSFET (High side:75mΩ, Low side:50mΩ)
3) Built-in Thermal Shut Down (TSD), Under-Voltage Lock-Out (UVLO), Adjustable Over Current Protection (OCP) : detected Low side FET Ron, Over Voltage Protection (OVP), Short Circuit Protection (SCP)
4) Soft start function to minimize rush current during startup 5) VQFN032V5050 package 6) Built-in 5V power supply for FET drive 7) Integrated bootstrap diode
8) Switching frequency : 400kHz～800kHz（depend on input-output condition）
●Applications LCD-TV, PDP-TV, Set Top Box, Game Consoles, Desktop PCs
www.
rohm.
com © 2011 ROHM Co.
, Ltd.
All rights reserved.
1/13
2011.
05 - Rev.
B
BD95830MUV
Technical Note
●Maximum Absolute Ratings (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Input Voltage BOOT Voltage BOOT-SW Voltage Output Voltage
VIN1, VIN2, VINS
15.
1 *1*2
V
BOOT1,BOOT2
21.
1 *1*2
V
BOOT1-SW1, BOOT2-SW2
7 *1*2
V
VOUT1, VOUT2
7 *1*2
V
Output Feedback Voltage VREG Voltage
FB1, FB2 VREG
VREG
V
7 *1*2
V
VCC Voltage Logic Input Voltage Power Dissipation 1 Power Dissipation 2 Power Dissipation 3 Power Dissipation 4
VCC EN1, EN2
Pd1 Pd2 Pd3 Pd4
VREG
V
15.
1 *1*2
V
0.
38 *3
W
0.
...
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