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EMP2112

1.2A High Efficiency Synchronous Buck Converter in SOT Package

产品详情

Vin (min) (V) 2.5
Vin (max) (V) 5.5
Vout (min) (V) 0.6
Vout (max) (V) 5.5
Iout (max) (A) 1.2
Iq (typ) (mA) 0.035
Switching frequency (min) (kHz) 1500
Switching frequency (max) (kHz) 1500
Features Enable, Light Load Efficiency, Light load efficiency, Power good, Synchronous Rectification
Operating temperature range (°C) -40 to 125
Rating Catalog
Regulated outputs (#) 1
Control mode COT
Duty cycle (max) (%) 100
Type Converter
EMP2112GV SOT23-5 SOT23 package, 5 pins 2.92mm x 2.8mm; 1.25 mm (Max) height
EMP2112PGV SOT23-6 SOT23 package, 6pins 2.92mm x 2.8mm; 1.25 mm (Max) height
  • 2.5V to 5.5V Input Voltage Range
  • 35μA Operating Quiescent Current
  • Internal Soft Startup
  • Adjustable Output Voltage from 0.6 V to VIN
  • 100% Duty Cycle for Lowest Dropout
  • 1.5MHz Switching Frequency
  • Integrated Low RDS(ON) Switches 200mΩ / 100mΩ
  • Optimized PFM mode for battery applications to improve light load efficieny
  • Power Good Output for EMP2112P
  • Short circuit protection with Hiccup mode
  • Thermal Shutdown Protection
  • Available in SOT23-5 package and EMP2112P available in SOT23-6 pakcage

The EMP2112 device is a synchronous step-down buck DC-DC converter optimized for high  efficiency and compact solution size. The device integrates switches capable of delivering an  output current up to 1.2A. At medium to heavy loads, the device operates in pulse width modulation (PWM) mode with 1.5- MHz switching frequency. At light load, the device automatically enters PFM mode to maintain  high efficiency over the entire load current range. In shutdown, the current consumption is reduced to less than 2 μA. The EMP2112 provides an adjustable output voltage via an external resistor divider. An internal  soft start circuit limits the inrush current during startup. Other features like over current  protection, thermal shutdown protection and power good are built-in.  The device is available in a SOT23 package.

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1.2A High Efficiency Synchronous Buck Converter in SOT Package

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1.2A High Efficiency Synchronous Buck Converter in SOT Package