BD9035AEFV-C Datasheet, PDF (1/26 Pages) Rohm – various protection functions

Datasheet
Controller type switching regulator with high frequency, high accuracy external FET
Automatically Controlled
Buck-Boost Switching Regulator
BD9035AEFV-C
General Description
The BD9035AEFV-C is a buck-boost switching controller
with a high withstand voltage and a wide input range
(VIN=3.8~30V) capable of generating buck-boost output
with one inductor. The IC has a ±7% high accuracy
switching frequency for the entire operating temperature
range (Ta=-40°C~+125°C). Because of the automatically
controlled buck-boost system the BD9035AEFV-C also
has a higher efficiency compared to regular switching
regulators employing Sepic or H-Bridge systems.
Features
„ Power supply voltage: 40V (maximum rating)
„ Automatically controlled buck-boost system.
„ ±7% High accuracy switching frequency
(Ta=-40°C~+125°C).
„ PLL circuit for external synchronization:
100kHz~600kHz
„ Two-stage overcurrent protection through one external
resistor
„ Various protection functions
„ Undervoltage, overvoltage output detection circuit &
constant output monitor pin (PGOOD)
„ AEC-Q100 Qualified
Applications
„ Automotive micro controller, car audio and navigation
system, LCD TV, PDP TV, DVD, PC, etc.
Key Specifications
„Input voltage range:
3.8V to 30V
„Oscillation frequency:
(Initial startup is over 4.5V)
100kHz to 600kHz
„Reference voltage accuracy:
0.8V±1.5%
„Circuit current at shutdown:
0μA (Typ.)
„Operating temperature range:
-40℃ to +125℃
Package
HTSSOP-B24
W(Typ.) x D(Typ.) x H(Max.)
7.80mm x 7.60mm x 1.00mm
Figure 1. HTSSOP-B24
Typical Application Circuit
Figure 2. Typical application circuit diagram
○Product structure：Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
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TSZ0 2201-0T1T0AL00110-1-2
19.Feb.2014 Rev.002