A7335
DC-DC CONVERTER BUCK (STEP-DOWN)
30V, 3.5A SYNCHRONOUS CV/CC
AiT Semiconductor Inc.
www.ait-ic.com
DESCRIPTION
FEATURES
A7335 is a wide input voltage, high efficiency
Synchronous CC/CV step-down DC/DC converter
that operates in either CV (Constant Output Voltage)
mode or CC (Constant Output Current) mode. A7335
provides up to 3.5A output current at EMI friendly
133kHz switching frequency. For >3.0A loading
current, it is advised to add an optional external
power Schottky Diode D1 to relieve partial heat
dissipation as drawn in application diagram. A7335
eliminates the expensive, high accuracy current
sensing resistor, making it an ideal CC charger for
battery charging applications and adaptors with
accurate current limit. The A7335 achieves higher
efficiency than traditional constant current switching
regulators by eliminating its associated power loss on
the additional current sensing resistor.
Up to 30V Input Surge Voltage
Continuous Operating Input Voltage up to 28V
Up to 3.5A Output Current
133kHz Switching Frequency
Up to 93% Efficiency
Stable with Low-ESR Ceramic Capacitors to
Allow Low-Profile Designs
Constant Current Control Without Additional
Current Sensing Resistor Improves Efficiency
and Lowers Cost
Resistor Programmable Current Limit from 1.5A
to 3.5A
Up to 0.5 V Excellent Cable Voltage Drop
Compensation
±7.5% CC Accuracy
±2% Feedback Voltage Accuracy
Advanced Feature Set
Protection features include cycle-by-cycle current
limit, thermal shutdown, and short circuit recovery.
Integrated Soft-Start of
Thermal Shutdown
The A7335 is available in PSOP8 package.
Cycle-by-Cycle Current Limit protection
Available in PSOP8 Package
ORDERING INFORMATION
APPLICATION
Package Type
Part Number
A7335MP8R
A7335MP8VR
Car Charger/ Adaptor
PSOP8
MP8
Rechargeable Portable Devices
General-Purpose CC/CV Supply
USB Power Output Ports
SPQ: 4,000pcs/Reel
V: Halogen free Package
R: Tape & Reel
Note
AiT provides all RoHS products
TYPICAL APPLICATION
Simplified Application Circuit
17 W CC/CV Typical Application Circuit
REV1.0
- NOV 2017 RELEASED -
- 1 -