NCP3125 Overview
10 mA Fault UVLO POR Latch OLP + − + VOCTH − + PWM p − R PWM OUT Q S Fault Clock Ramp OSC OSC Count Latch & Logic Counter DtoA + − VREG + 0.7 V − Fault − + + − 2V BST VCC VIN VSW AGND Figure 3. NCP3125 Block Diagram ISET PGND Table 1. PIN DESCRIPTION Pin Pin Name Description 1 PGND The PGND pin is the high current ground pin for the low−side MOSFET and the drivers.
NCP3125 Key Features
- 4.5 V to 13.2 V Operating Input Voltage Range
- 60 mW High-Side, 36 mW Low-Side Switches
- Output Voltage Adjustable to 0.8 V
- 4 A Continuous Output Current
- Fixed 350 kHz PWM Operation
- 1.0% Initial Output Accuracy
- 75% Max Duty Ratio
- Over-Load Protection
- Programmable Current Limit
- This is a Pb-Free Device