MP8796

MP8796

16V, 30A, Scalable, Configurable-Frequency, Synchronous Step-Down Converter with Adjustable Current Limit and Remote Sense

Datasheet

Description

The MP8796 is a fully integrated, high frequency, synchronous step-down converter. It offers a very compact solution that can achieve up to 30A of output current (I_OUT) across a wide 4V to 16V input voltage (V_IN) range, with excellent load and line regulation. The MP8796 operates at high efficiency across a wide I_OUT load range.

MPS’s proprietary multi-phase constant-on-time (MCOT) control provides fast transient response and eases loop stabilization. The MCOT scheme allows for multiple MP8796 devices to be connected in parallel, with excellent current sharing and phase interleaving for high-current applications. The switching frequency (f_SW) can be set between 400kHz and 1000kHz. This maintains a constant f_SW, regardless of V_IN and the output voltage (V_OUT).

During start-up, V_OUT ramps up in a controlled manner using an external capacitor. An open-drain power good (PG) signal indicates whether V_OUT is within its nominal voltage range. Full protection features include over-current protection (OCP), over-voltage protection (OVP), and over-temperature protection (OTP) with selectable hiccup mode or latch-off mode.

The MP8796 requires a minimal number of readily available, standard external components, and is available in a TQFN-25 (4mmx5mm) package.

Features & Benefits

Wide 4V to 16V Operating Input Voltage (V_IN) Range
Wide 3V to 16V Operating V_IN Range with External 3.3V V_CC Bias
Up to 30A Continuous Output Current (I_OUT) per Phase
Adjustable Current Limit (I_LIMIT)
850μA Quiescent Current (I_Q)
Low On Resistance (R_DS(ON)) Integrated Power MOSFETs
Lossless and Accurate On-Die Current Sensing
Adaptive Constant-On-Time (COT) Control for Ultrafast Transient Response
Stable with Zero-ESR Output Capacitor
Remote Sense
Scalable Multi-Phase Operation
400kHz to 1000kHz Selectable Switching Frequency (f_SW)
Configurable Soft-Start Time (t_SS)
Selectable Pulse-Frequency Modulation (PFM) Mode and Forced Continuous Conduction Mode (FCCM)
Selectable Internal Ramp Compensation
Over-Current Protection (OCP), Over Voltage Protection (OVP), and Over-Temperature Protection (OTP) with Selectable Hiccup Mode or Latch-Off Mode
Available in a TQFN-25 (4mmx5mm) Package