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MIC2811

Single DC/DC + 3 LDOs w/ Low Noise Bypass

Status: In Production

Features:

  • 2MHz DC/DC converter and 3 LDOs
  • Thermal Shutdown Protection
  • ±2% Output Voltage Accuracy on all outputs
  • Current Limit Protection
  • 2.7V to 5.5V input voltage range
  • Output current to 600mA
  • 2MHz PWM operation
  • Up to 86% efficiency (1.2V output)
  • 1.65V to 5.5V input voltage range
  • 300mA output current
  • Fixed Output voltage as low as 0.8V
  • Low 142mV dropout
  • 70dB PSRR at 1kHz
  • 2.7V to 5.5V input voltage range
  • 300mA output current
  • Fixed Output voltage as low as 1.0V
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2811/21 are high performance power management ICs, supporting four output voltage rails with maximum efficiency. The four rails are generated by a single 600mA DC/DC converter and three 300mA LDOs. LDO1 and LDO2 are capable of operating at a low input voltage down to 1.65V useful for post regulating the output voltage of the DC-DC converter. The MIC2811 supports the use of a bypass cap for improved noise performance on LDO1 and LDO2 while the MIC2821 offers a separate enable pin for LDO3.Featuring an operating frequency of 2MHz, the DC to DC converter uses small values of L and C to reduce board space but still retains operating efficiencies up to 86% at load currents up to 600mA.The MIC2811/21 feature a µCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost.

Additional Features
    • 2MHz DC/DC converter and 3 LDOs
    • Thermal Shutdown Protection
    • ±2% Output Voltage Accuracy on all outputs
    • Current Limit Protection
    DC/DC Converter
    • 2.7V to 5.5V input voltage range
    • Output current to 600mA
    • 2MHz PWM operation
    • Up to 86% efficiency (1.2V output)
    • LDO 1 and 2
      • 1.65V to 5.5V input voltage range
      • 300mA output current
      • Fixed Output voltage as low as 0.8V
      • Low 142mV dropout
      • 70dB PSRR at 1kHz
      LDO 3
      • 2.7V to 5.5V input voltage range
      • 300mA output current
      • Fixed Output voltage as low as 1.0V
Parametrics
Name
Value
IOUT (A)
600
IOUT LDO (mA)
300/300
LDO
LDO1,2: 0.8V to 3.6V, LDO3: 1.0V to 3.9V
VOUT (V)
1.0V/2.0V
Type
PMIC
Short Description
Digital Power Management IC, 2MHz DC/DC converter with 3 LDOs. Bypass cap for improved noise performance on LDO1 and LDO2. LDO1 and LDO2 have separate VIN pins. Separate enable pins.
VIN Max (V)
5.5
Oja (C/W)
56
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
MIC2811-4GJLYML-TR
0.000000
0.129004
16
VQFN
3x3x0.90mm
NiPdAu
e4
MIC2811-4GMSYML-TR
0.000000
0.129004
16
VQFN
3x3x0.90mm
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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