MPM3685

MPM3685

2.7V to 16V, 15A, Step-Down Power Module

概要

The MPM3685 is an easy-to-use, fully integrated, step-down DC/DC power module. The device offers a complete power solution that achieves up to 20A of peak current. It integrates a DC/DC converter, power inductor, and passive components. The MPM3685 can deliver up to 15A of continuous output current (I_OUT) across a wide input voltage (V_IN) supply range, with excellent load and line regulation.

The MPM3685 uses constant-on-time (COT) control to provide fast transient response and ease loop stabilization. The switching frequency (f_SW) can be easily set to 600kHz, 800kHz, or 1000kHz by configuring the MODE pin, allowing f_SW to remain constant regardless of V_IN and the output voltage (V_OUT).

The MPM3685 features a configurable soft-start (SS) time (t_SS) with one capacitor. An open-drain power good (PG) signal indicates whether V_OUT is within the nominal voltage range.

The device has fully integrated, non-latched protection features, including over-current protection (OCP), over-voltage protection (OVP), and over-temperature protection (OTP).

The MPM3685 is available in a compact FCM ECLGA-33 (5mmx5mmx2.76mm) package.

機能と利点

Wide Input Voltage (V_IN) Range:
- 2.7V to 16V with External 3.3V VCC Voltage (V_CC)
- 4V to 16V with Internal or External V_CC
0.6V to 5.5V Output Voltage (V_OUT) Range
15A Continuous Output Current (I_OUT), Peak 20A
Differential V_OUT Remote Sense
Adaptive Constant-On-Time (COT) for Ultra-Fast Transient Response
Selectable Pulse-Skip Mode (PSM) or Forced Continuous Conduction Mode (FCCM)
V_OUT Tracking and V_OUT Discharge
Power Good (PG) Pin Clamped Active Low during Power Failure
Configurable Soft-Start Time (t_SS)
Pre-Biased Start-Up
600kHz, 800kHz, or 1000kHz Selectable Switching Frequency (f_SW)
Non-Latch Over-Current Protection (OCP), Under-Voltage Lockout (UVLO), Thermal Shutdown, and Over-Voltage Protection (OVP)