33167T Datasheet | onsemi

MC34167, MC33167 5.0 A, Step-Up/Down/ Inverting Switching Regulators 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 µA. - Output Switch Current in Excess of 5.0 A - Fixed Frequency Oscillator (72 k Hz) 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 µA - Economical 5- Lead TO- 220 Package with Two Optional Leadforms - Also Available in Surface Mount D2PAK Package - Moisture Sensitivity Level (MSL) Equals 1 Vin ILIMIT Oscillator 4 1 S Q R PWM UVLO Thermal Reference EA D2PAK D2T SUFFIX CASE 936A 5 Heatsink surface (shown as terminal 6 in case outline drawing) is connected to Pin 3 MC 3x167T AWLYWW L 2 5 Pin 1. 2. 3. 4. 5. Voltage Feedback Input Switch Output Ground Input Voltage/VCC pensation/Standby w w w . d a t a s h e e t 4 u . c o m http://onsemi. x A WL Y WW = 3 or 4 = Assembly Location = Wafer Lot = Year = Work Week TO- 220 TH SUFFIX CASE 314A 1 5 MARKING DIAGRAMS MC 3x167T AWLYWW 1 5 TO- 220 TV SUFFIX CASE 314B MC 3x167T...