Datasheet
Power Management IC for Automotive Microcontroller
Buck-Boost Switching Regulator + LDO
+ Reset + Watch Dog Timer
BD39002EFV-C
General Description
Key Specifications
BD39002EFV-C is a power management IC with
buck-boost switching regulator controller (DC / DC1),
LDO, reset and WDT.
The BD39002EFV-C includes protection circuits, such
as Under voltage, Over voltage, Over current and TSD.
■
Input voltage range
4.0 V to 30 V
(Startup voltage needs to be above 4.5V.)
■
Output voltage
Buck-Boost DC / DC1 FB Voltage
0.8 V
5.0 V
Secondary LDO
■
Reference voltage accuracy
Buck-Boost DC / DC1 FB Voltage
Secondary LDO
±2 %
±2 %
200 to 550 kHz
Features
■
Automatically controlled buck-boost switching
regulator with 40 V rated VCC, DC / DC and LDO
input
■
■
Oscillation frequency
Max output current
Secondary LDO
Stand-by Current
Operating temperature range
AEC-Q100 Qualified
600 mA
0 μA (Typ)
-40 °C to 125 °C
■
■
■
5 V fixed output secondary LDO
Configurable Sequence control
Over Current protection
■
■
■
DC / DC1: Adjustable voltage with external resistors
LDO: Integrated
■
■
■
■
Over voltage / Under voltage detection
Reset for LDO and WDT
Window Watchdog Timer
Package
W (Typ) × D (Typ) × H (Max)
10.00 mm × 7.60 mm × 1.00 mm
HTSSOP-B30
HTSSOP-B30 package
Applications
■
Microcontroller for Automotive
Typical Application Circuit
Simplified Circuit1
Simplified Circuit2
VCC
VCC
EN1
CL
OUTH
VL
EN1
CL
OUTH
VL
VREG
VERG
RT
VO1
RT
VO1
VO1
VO1
SS1
VDD
SS1
FB1
VDD
FB1
OUTL
PGND1
OUTL
COMP1
COMP1
PGND1
VO1
VO1
VO2
VO2
VS2
EN2
VO2
CT
VS2
VO2
EN2
CT
ENWD
CLK
RST2#
RSTWD#
PG1
ENWD
CLK
RST2#
RSTWD#
PG1
RTW
RTW
SEL_UVLO
PG2
SEL_UVLO
PG2
GND
GND
Buck-Boost Switching Regulator + Secondary LDO
Buck Switching Regulator + Secondary LDO
○Product structure: Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
www.rohm.com
TSZ02201-0T2T0AM00200-1-2
Oct.29.2014 Rev.001
© 2014 ROHM Co., Ltd. All rights reserved.
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