4.5V-100V Vin, 1.2A, Synchronous Buck/Iso-Buck Converter, SCT2A23 Replace LM34927.
FEATURES

• Wide Input Range: 4.5V-100V

• 1.8A peak current limit

• Integrated 530mΩ High-Side and 220mΩ Low-

  Side Power MOSFETs

• 15uA Quiescent Current with VCC diode

  160uA Quiescent Current without VCC diode

• Selectable PFM, USM and FPWM Operation

  Modes

• 1.2V ±1% Feedback Reference Voltage at Room

  Temperature

• 4.3ms Internal Soft-start Time

• Fixed Switching Frequency at 300KHz

• COT Control Mode

• FPWM mode support Iso-buck Topology

• Precision Enable Threshold for Programmable

  Input Voltage Under-Voltage Lock Out Protection

  (UVLO) Threshold and Hysteresis

• Cycle-by-Cycle Current Limit

• Over-Voltage Protection

• Over-Temperature Protection

• Available in an ESOP-8 Package

PIN CONFIGUTION
优势替代
LM34927 LM34927.pdf

No.12358

FEATURES

• Wide 7.5-V to 100-V Input Range

• Integrated 600-mA High-Side

  and Low-Side Switches

• No Schottky Required

• Constant On-Time Control

• No Loop Compensation Required

• Ultra-Fast Transient Response

• Nearly Constant Operating Frequency

• Intelligent Peak Current Limit

• Adjustable Output Voltage From 1.225 V

• Precision 2% Feedback Reference

• Frequency Adjustable to 1 MHz

• Adjustable Undervoltage Lockout (UVLO)

• Remote Shutdown

• Thermal Shutdown

• Packages:

  8-pin WSON

  8-pin SO PowerPAD™




PIN CONFIGUTION
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