Monolithic Power Systems (MPS) MPQ8633A-H Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ8633A-H Synchronous Step-Down Converters are fully integrated high-frequency converters with up to 12A output current. These converters’ full protection features include Over-Current Protection (OCP), Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), and Over-Temperature Protection (OTP). The MPQ8633A-H step-down converters require few readily available, standard external components. These converters are available in the QFN-21 (3mm x 4mm) package. The MPQ8633A-H synchronous converters are ideal for telecommunication, networking, servers, and base stations.

Features

Wide Input Voltage (V_IN) range:
- 2.7V to 16V with external 3.3V bias
- 4V to 16V with internal bias or external 3.3V bias
Differential Output Voltage (V_OUT) remote sense
Configurable accurate Current Limit (I_LIMIT)
12A Output Current (I_OUT)
Integrated low R_DS(ON) power MOSFETs
Proprietary switching loss reduction technique
Adaptive Constant-On-Time (COT) control for ultrafast transient response
Stable with zero ESR output capacitor
Reference Voltage (V_REF) accuracy:
- 0.5% V_REF accuracy from 0°C to 70°C temperature range
- 1% V_REF accuracy from -40°C to 125°C temperature range
Selectable Pulse-Skip Mode (PSM) or Forced Continuous Conduction Mode (FCCM)

Excellent load regulation
V_OUT tracking
V_OUT discharge
PGOOD clamped low during power failure
Configurable Soft-Start Time (t_SS) from 1ms
Pre-biased start-up
600kHz, 800kHz, or 1000kHz selectable Switching Frequency (f_SW)
Non-Latch OCP, UVP, OVP, UVLO protections, and thermal shutdown
Adjustable V_OUT from 0.6V to 90% of V_IN (5.5V maximum)
Available in a QFN-21 (3mm x 4mm) package

Applications

Telecommunication systems
Networking systems

Servers
Base stations

Monolithic Power Systems (MPS) MPQ8633A-H Synchronous Step-Down Converters

Features

Applications

Application Circuit Diagram

Functional Block Diagram

husseinkey ELECTRONICS®

COMPANY