MPQ2908A
Active
Industrial Grade. 4V-60V Input, Current Mode;Synchronous Step-Down Controller
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The MPQ2908A is a high-voltage, synchronous, step-down controller that directly steps down voltages from up to 60V. The MPQ2908A uses pulse-width modulation (PWM) current control architecture with accurate cycle-by-cycle current limiting and is capable of driving dual N-channel MOSFETs.
Advanced asynchronous mode (AAM) enables non-synchronous operation to optimize light-load efficiency.
The operating frequency of the MPQ2908A 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 MPQ2908A is available in TSSOP20-EP and QFN-20 (3mmx4mm) packages.
Product Features
- Wide 4V to 60V Operating Input Range
- Dual N-Channel MOSFET Driver
- 0.8V Voltage Reference with ±1.5% Accuracy Over Temperature
- Low Dropout Operation: Maximum Duty Cycle at 99.5%
- Programmable Frequency Range: 100kHz -1000kHz
- External Sync Clock Range: 100kHz -1000kHz
- 180º Out-of-Phase SYNCO Pin
- Programmable Soft Start (SS)
- Power Good (PG) Output Voltage Monitor
- Selectable Cycle-by-Cycle Current Limit
- Output Over-Voltage Protection (OVP)
- Over-Current Protection (OCP)
- Internal LDO with External Power Supply Option
- Programmable Forced CCM and AAM
- Available in TSSOP20-EP and QFN-20 (3mmx4mm) Packages
- AEC-Q100 Grade-1
Parametrics
- PGYes
- SSExternal
- Special FeaturesFrequency Adjustable, Hiccup Current Limit
- GradeIndustrial
- fsw (max) (kHz)1000
- Regulated Outputs1
- Iq (typ) (mA)0.75
- Vfb (typ) (V)0.8
- PackageQFN-20 (3x4), TSSOP20 EP
- Max Duty Cycle (%)1
- Vin (max) (V)60
- Vin (min) (V)4
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