A7545
DC-DC CONVERTER/BOOST (STEP-UP)
AiT Semiconductor Inc.
www.ait-ic.com
LOW-NOISE 4.5A STEP-UP CURRENT MODE PWM CONVERTER
DESCRIPTION
FEATURES
The A7545 is a current mode boost DC-DC
converter. It is PWM circuitry with built-in 0.05Ω
power MOSFET make this regulator highly power
efficient. The internal compensation network also
minimizes as much as 6 external component counts.
The non-inverting input of error amplifier connects to
a 0.6V precision reference voltage and internal
soft-start function can reduce the inrush current.
Adjustable Output up to 9V
Internal Fixed PWM frequency: 1MHz
Precision Feedback Reference Voltage: 0.6V (±2%)
Internal 0.05Ω, 4.5A, 12V Power MOSFET
Shutdown Current: 0.1μA
Over Temperature Protection
Over Voltage Protection
Adjustable Over Current Protection: 0.5A ~ 4.5A
Available in PSOP8 Package
The A7545 is available in PSOP8 package.
APPLICATION
Chargers
ORDERING INFORMATION
LCD Displays
Digital Cameras
Handheld Devices
Portable Products
Package Type
PSOP8
Part Number
A7545MP8R
A7545MP8VR
MP8
TYPICAL APPLICATION
V: Halogen free Package
R: Tape & Reel
Note
AiT provides all RoHS products
Suffix ꢀ V ꢀ means Halogen free Package
Figure 1. Basic Application Circuit with A7545
REV1.0
- JUN 2014 RELEASED -
- 1 -
AITSEMI [ AiT Semiconductor ]
