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MP9928

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4V-60V Input, Current Mode, Synchronous Step-Down Controller

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Datasheet (EN)

Product Description

The MP9928 is a high-voltage, synchronous step-down switching regulator controller that can directly step down voltages from up to 60V. The MP9928 uses PWM current control architecture with accurate cycle-by-cycle current limiting. It is capable of driving dual N-channel MOSFET switches.
AAM Mode (Advanced asynchronous mode) enables non-synchronous operation and PFM mode to optimize light load efficiency.
The operating frequency of MP9928 can be programmed by an external resistor or synchronized to an external clock for noise-sensitive applications. Fault protections are available including a precision output over voltage protection (OVP), output over current protection (OCP), and thermal shutdown.
The MP9928 is available in TSSOP20-EP package and QFN-20 (3mmx4mm) package.

Product Features

Wide 4V to 60V Operating Input Range
Dual N-Channel MOSFET Driver
Low Dropout Operation: Maximum Duty Cycle at 99.5%
Programmable Frequency Range: 100kHz -1000kHz
180º Out-of-Phase SYNCO
External Soft-Start and PG Pin
Selectable Cycle-by-Cycle Current Limit
Output Over Voltage Protection
Internal LDO with Externally Power Supply Option
Programmable CCM and AAM Pulse-Skipping Mode
Accuracy Over Temperature Protection
TSSOP20-EP package and QFN-20 (3mmx4mm) Package

Parametrics

PGYes
SSExternal
Special FeaturesExternal Frequency Sync, Frequency Adjustable, Hiccup Current Limit
GradeCatalog
fsw (max) (kHz)1000
Regulated Outputs1
Iq (typ) (mA)0.75
Vfb (V)0.8
PackageQFN-20 (3x4), TSSOP20 EP
Max Duty Cycle (%)0.995
Vin (max) (V)60
Vin (min) (V)4

60V Current Mode, Synchronous Step-Down Controller Evaluation Board

The EV9928-F-00B Evaluation Board is designed to demonstrate the capabilities of MP9928. The MP9928 is a high-voltage, synchronous step-down controller that directly steps down voltages from up to 60V. The MP9928 uses PWM current control architecture with accurate cycle-by-cycle current limiting and is capable of driving dual N-channel MOSFETs.

The operating frequency of the MP9928 can be programmed by an external resistor or synchronized to an external clock for noise sensitive applications. Full protection features include precision output over-voltage protection (OVP), output over-current protection (OCP), and thermal shutdown.

The MP9928 is available in TSSOP20-EP and QFN-20 (3mmx4mm) packages. This board is available in TSSOP20-EP package.

$25.00 + tax