RT7296F集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

General Description

The RT7296F is a high-efficiency, 3A current mode

synchronous step-down DC-DC converter with a wide

input voltage range from 4.5V to 17V. The device

integrates 80m high-side and 30m low-side

MOSFETs to achieve high efficiency conversion. The

current mode control architecture supports fast

transient response and internal compensation. The

RT7296F provides power good pin to be an output

voltage ready indicator. A cycle-by-cycle current limit

function provides protection against shorted output.

The RT7296F provides complete protection functions

such as input undervoltage lockout, output

undervoltage protection, overcurrent protection, and

thermal shutdown. The PWM frequency is adjustable

by the EN/SYNC pin. The RT7296F is available in the

TSOT-23-8 (FC) package.

The recommended junction temperature range is

−40C to 125C and ambient temperature range is

−40C to 85C.

特性 Features

⚫ 4.5V to 17V Input Voltage Range

⚫ 3A Output Current

⚫ Internal N-Channel MOSFETs

⚫ Current Mode Control

⚫ Fixed Switching Frequency: 500kHz

⚫ Synchronous to External Clock: 200kHz to 2MHz

⚫ Cycle-by-Cycle Current Limit

⚫ Internal Soft-Start Function

⚫ Power Saving Mode at Light Load

⚫ Power Good Indicator

⚫ Input Undervoltage Lockout

⚫ Output Undervoltage Protection

⚫ Thermal Shutdown

⚫ RoHS Compliant and Halogen Free

Applications

⚫ Industrial and Commercial Low Power Systems

⚫ Computer Peripherals

⚫ LCD Monitors and TVs

⚫ Set-top Boxes