供应致新G2822T11U 1MHz, 3A同步降压调节器

致新G2822T11U 1MHz, 3A同步降压调节器

General Description

The G2822 is a high efficiency monolithic synchronous
buck regulator using a constant frequency, current
mode architecture. Supply current during operation is
only 50μA and drops to <1μA in shutdown. The 2.7V
to 6.5V input voltage range makes the G2822 ideally
suited for single Li-Ion battery-powered applications.
100% duty cycle provides low dropout operation, extending
battery run time in portable systems. Switching
frequency is internally set at 1MHz, allowing the use of
small surface mount inductors and capacitors. The
internal synchronous switch increase efficiency and
eliminates the need for an external Schottky diode.
Built-in soft start function eliminates in-rush current

that could damage the system.

Features
High Efficiency: Up to 95%
50μA Operating Quiescent Current
<1μA Shutdown Current
Internal Soft Start Function
Output Current :
G2822T11U: 2A Continuous, 3A Peak
G2822TB1U: 2A Continuous, 3A Peak
G2822RC1U: 3A Continuous
2.7V to 6.5V Input Voltage Range
1MHz Switching Frequency
No Schottky Diode Required
100% Duty Cycle in Dropout Operation
0.6V Reference Allows Low Output Voltages
Over Temperature Protection
Hiccup Short-Circuit Protection
Output Discharge
RoHS Compliant

Applications
Cellular Telephones
Personal Information Appliances
Microprocessors and DSP Core Supplies
Wireless and DSL Modems
Digital Still and Video Cameras
MP3 Players
Portable Instruments

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