18V2A 同步降压芯片ZCC1496替代SY8120
FEATURES
High Efficiency: Up to 98%
600KHz Frequency Operation
2A Output Current
No Schottky Diode Required
4.0V to 18V Input Voltage Range
0.6V Reference
Slope Compensated Current Mode
Control for Excellent Line and
Load Transient Response
Integrated internal compensation
Stable with Low ESR Ceramic
Output
Capacitors
Over Current Protection with
Hiccup-Mode
Thermal Shutdown
Inrush Current Limit and Soft Start
Available in SOT23-6 Package
-40°C to +85°C Temperature Range
APPLICATIONS
Distributed Power Systems
Digital Set Top Boxes
Flat Panel Television and Monitors
Wireless and DSL Modems
Notebook Computer
GENERAL DESCRIPTION
The ZCC1496A is a fully integrated, high
efficiency 2A synchronous rectified step
down converter. The
ZCC1496A operates
at high efficiency over a wide output current
load
range.
This
device
offers
two
operation modes, PWM control
and
PFM
Mode switching control, which
allows a
high efficiency over the wider range of the
load. The ZCC1496A
requires a
minimum
number
of readily
available
standard
external
components and is available in a
6-pin SOT23-6 compliant package.
页:
[1]