MP8638

MP8638

16V, 12A, Synchronous Step-Down Converter with Adjustable Current Limit

Datasheet

Description

The MP8638 is a fully integrated, high-frequency, synchronous, rectified, step-down switch-mode converter. It offers an ultra-compact solution that can achieve up to 12A of continuous output current (I_OUT), with an adjustable current limit (I_LIMIT).

MPS's proprietary switching loss reduction technique and internal, low on resistance (R_DS(ON)) power MOSFETs allow the device to operate at high efficiency across the entire I_OUT load range.

Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop and remote differential sense provide excellent load and line regulation.

Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown.

The MP8638 requires a minimal number of standard external components, and is available in a QFN-16 (3mmx3mm) package.

Features & Benefits

Wide 4.5V to 16V Operating Input Voltage (V_IN) Range
100μA Low Quiescent Current (I_Q)
12A Continous Output Current (I_OUT)
Adjustable Current Limit (I_LIMIT)
Selectable Switching Frequency (f_SW)
Selectable External and Internal 3V3 Power Supply
Adaptive Constant-On-Time (COT) Control for Fast Transient Response
DC Auto-Tune Loop and Remote Differential Sense
Low On Resistance (R_DS(ON)) Internal Power MOSFETs
Proprietary Switching Loss Reduction Technique
Stable with POSCAP and Ceramic Output Capacitors
1% Reference Voltage (V_REF)
Internal Soft Start (SS)
Output Discharge
Over-Current Protection (OCP), Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), and Thermal Shutdown
Available in a QFN-16 (3mmx3mm) Package