MC33167 Datasheet | onsemi

DATA SHEET .onsemi. Inverting Switching Regulators - Step-Up/Down 5.0 A MC34167, MC33167 The MC34167, MC33167 series are high performance fixed frequency power switching regulators that contain the primary functions required for dc- to- dc converters. This series was specifically designed to be incorporated in step- down and voltage- inverting configurations with a minimum number of external ponents and can also be used cost effectively in step- up applications. These devices consist of an internal temperature pensated reference, fixed frequency oscillator with on- chip timing ponents, latching pulse width modulator for single pulse metering, high gain error amplifier, and a high current output switch. Protective Features consist of cycle- by- cycle current limiting, undervoltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36 mA. Features - Output Switch Current in Excess of 5.0 A - Fixed Frequency Oscillator (72 kHz) with On- Chip Timing - Provides 5.05 V Output without External Resistor Divider - Precision 2% Reference - 0% to 95% Output Duty Cycle - Cycle- by- Cycle Current Limiting - Undervoltage Lockout with Hysteresis - Internal Thermal Shutdown - Operation from 7.5 V to 40 V - Standby Mode Reduces Power Supply Current to 36 mA - Economical 5- Lead TO- 220 Package with Two Optional Leadforms - Also Available in Surface Mount D2PAK Package - Moisture Sensitivity Level (MSL) Equals 1 - Pb- Free Packages are Available ILIMIT Vin 4 Oscillator S Q R 2 PWM...