- MP2421
MP2421
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Description
The MP2421 is a fully integrated, high-frequency, synchronous, buck converter. It offers a very compact solution that achieves up to 20A of output current (IOUT) with excellent load and line regulation across a wide input supply range. The MP2421 operates at a high efficiency across a wide IOUT load range
The MP2421 adopts an internally compensated constant-on-time (COT) control mode that provides fast transient response and eases loop stabilization.
The MP2421’s operation frequency can be set to 650kHz, 800kHz, or 1000kHz, and it has a selectable pulse-width modulation (PWM) or pulse-frequency modulation (PFM) mode via the MODE pin.
An open-drain power good (PG) signal indicates whether the output is within its nominal voltage range. PG is clamped to about 0.7V with an external pull-up voltage when the input supply fails to power the MP2421.
Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP).
The MP2421 requires a minimal number of readily available, standard external components, and is available in a TLGA-28 (3mmx4mm) package.
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Features & Benefits
- Wide 3.6V to 24V Input Voltage (VIN) Range
- Differential Output Voltage (VOUT) Remote Sense
- 20A of Continuous Output Current (IOUT)
- Adaptive Constant-On-Time (COT) Control for Ultra-Fast Transient Response
- 1% Reference Voltage (VREF) Accuracy
- 650kHz, 800kHz, and 1MHz Switching Frequency (fSW) and Selectable Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) via the MODE pin
- Adjustable VOUT from 0.4V
- Configurable Soft Start
- PG Active-Clamped at Low Level during Power Failure
- Pre-Biased Start-Up
- Over-Current Protection (OCP), Under-Voltage Protection (UVP), Under-Voltage Lockout (UVLO), Thermal Shutdown, and Over-Voltage Protection (OVP)
- Available in a TLGA-28 (3mmx4mm) Package
- Optimized Performance with MPS Inductor MPL-AL6050 and MPL-AL4020 Series
Active Part Numbers:
MP2421GLKT-Z MP2421GLKT-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z 
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