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MIC2807

DAC Controlled 2MHz 600mA DC/DC + Dual Low Noise 200mA/30mA LDOs

Status: In Production

Features:

  • 2.7V to 5.5V input voltage range
  • Stable with ceramic output capacitors
  • Thermal shutdown protection
  • Current limit protection
  • VOUT = VDAC x 3
  • Internal 95mΩ switch between PVIN and OUT pins
  • V DAC >1.2V
  • Up to 600mA output current in PWM mode
  • 100% duty cycle operation for maximum efficiency
  • Tiny 4.7µH, 1µF output inductor and capacitor
  • Low-noise 2MHz PWM operation
  • >90% efficiency
  • High accuracy: ±2% over temperature
  • High PSRR: greater than 70dB
  • Very low output noise: 32 µVrms
  • LDO1: 200mA output current capability
  • LDO2: 30mA output current capability
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2807 integrates a high performance DC/DC converter intended for powering a power amplifier (PA) in a mobile phone with dual low noise low dropout (LDO) regulators for the rest of the RF section. Optimized for low noise performance, the MIC2807 improves efficiency in the handset without compromising quality.The MIC2807 has a 2MHz, constant frequency pulse width modulated (PWM) DC/DC converter designed for low noise operation and high efficiency. The output voltage (VOUT) is variable from 0.3V to the input voltage (VIN), adjustable from 0.3V to 3.6V through a DAC input when VIN > VOUT. The converter will work in a 100% duty cycle mode to offer maximum power and efficiency in the application. In addition to 100% duty cycle, the DC/DC converter has a bypass mode of operation where the input voltage node (PVIN pin) is shorted to the output voltage node (OUT pin) through a 95mΩ switch.The integrated dual low noise low dropout regulators are optimized for high PSRR capability and fast turn-on times. The constant frequency DC/DC converter along with dual low noise LDO regulators enables a very quiet and efficient solution for mobile applications.The MIC2807 is a µCap design, operating with small ceramic output capacitors and inductors for stability, reducing required board space and component cost..

Additional Features
    • 2.7V to 5.5V input voltage range
    • Stable with ceramic output capacitors
    • Thermal shutdown protection
    • Current limit protection
    RF PA Power Supply DC/DC Converter
    • Adjustable output power supply - DAC controlled
      • VOUT = VDAC x 3
    • Bypass mode operation
      • Internal 95mΩ switch between PVIN and OUT pins
      • V DAC >1.2V
    • Up to 600mA output current in PWM mode
    • 100% duty cycle operation for maximum efficiency
    • Tiny 4.7µH, 1µF output inductor and capacitor
    • Low-noise 2MHz PWM operation
    • >90% efficiency
    Dual Low Noise Low Dropout Regulators
    • High accuracy: ±2% over temperature
    • High PSRR: greater than 70dB
    • Very low output noise: 32 µVrms
    • LDO1: 200mA output current capability
    • LDO2: 30mA output current capability
Parametrics
Name
Value
IOUT (A)
600
IOUT LDO (mA)
200/30
LDO
2.85V/2.85V
VOUT (V)
DAC cntrl, 0.3V to Vin
Type
PMIC
Short Description
RF Power Management IC, 600mA DC/DC converter with DAC controlled output to power amplifier. 200mA RF LDO output current (provides bias voltage supply for PA), 30mA PA LDO (provides highly accurate PA reference voltage).
VIN Max (V)
5.5
Oja (C/W)
70
VIN Min (V)
2.7

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2807-JJYML-TR
N/A
0.723350
17
VQFN
2.5x2.8x0.9mm
NiPdAu
e4
MIC2807-NNYML-TR
N/A
0.723350
17
VQFN
2.5x2.8x0.9mm
NiPdAu
e4
MIC2807-OOYML-TR
N/A
0.723350
17
VQFN
2.5x2.8x0.9mm
NiPdAu
e4
MIC2807-MMYML-TR
N/A
0.723350
17
VQFN
2.5x2.8x0.9mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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