BD90535EFJ-C Datasheet, PDF (1/21 Pages) Rohm – 2.69 to 5.5V, 1.5V Output, 2.25MHz Synchronous Step-Down Converter

BD90535EFJ-C
Datasheet
Secondary power supply series for automotive
2.69 to 5.5V, 1.5V Output, 2.25MHz
Synchronous Step-Down Converter
BD90535EFJ-C
●General Description
The BD90535EFJ-C is a synchronous rectification type
step-down DC/DC converter with a 2.25MHz fixed
frequency that operates in with an input voltage range
of 2.69V-5.5V. It has an integrated feedback resistor
that supplies a fixed output voltage of 1.5V and a
phase compensation constant. Applications can be
created with a minimum of three external components.
Moreover, the integrated Pch and Nch output MOSFET
can supply a maximum output current of 3A.
●Features
■ Thanks to the integrated output feedback resistor
and phase compensation, applications can be
created with a minimum of external components
■ Excellent load response through current mode
control
■ Integrated Pch and Nch output MOSFET
■ Integrated overcurrent protection with auto-reset
■ Integrated output overvoltage detection/
short-circuit detection
■ Integrated TSD and UVLO
■ Light load mode/PWM fixation operation selection
terminal
●Applications
■ Automotive equipment
■ Car audio and navigation
■ TV
■ Other electronic equipment
●Typical application circuit
Figure 1. Typical application circuit
(VIN=5V, VOUT=1.5V, IOUT=3A)
●Key Specifications
■ Input voltage range
■ Output voltage
■ Output voltage accuracy
■ Operating frequency
■ Maximum output current
■ Circuit current at standby
■ Operational temperature
range
2.69V～5.5V
1.5 [V] (Typ.)
±2.0%(-40～125°C)
2.25 [MHz] (Typ.)
3.0 [A] (Max.)
0[uA](Typ., 25°C)
-40～+125°C
●Package
HTSOP-J8
4.90 ㎜×6.00 ㎜×1.00 ㎜
100
90
Light Load MODE
80
70
60
50
PWM MODE
40
30
20
10
0
0.01
VIN=5V
Figure 1. CIRCUIT
0.10
1.00
LOAD CURRENT [A]
Figure 2. Efficiency (VIN=5V)
10.00
○Product structure：Silicon monolithic integrated circuit ○This product is not designed to be radiation resistant.
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