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MIC2826

Single 500mA Step-Down and Triple 150mA LDOs with I2C Voltage Control & Sequencing

Status: In Production

Features:

  • Fast-mode I2C control interface
  • Default start-up voltage states and sequencing
  • Fault indication processor flag - IRQb
  • -40°C to 125°C junction temperature range
  • Thermal shutdown and current-limit protection
  • Power On After Fault (POAF) function
  • 2.7V to 5.5V input voltage range
  • 500mA continuous output current
  • HyperLight Load® mode
  • 25µA quiescent current
  • 90% peak efficiency; 85% at 1mA
  • Ultra-fast transient response
  • 0.8V to 1.2V in 25mV steps
  • 1.2V to 1.8V in 50mV steps
  • ±2% initial accuracy
  • Low output voltage ripple: 20mVpp in HyperLight Load®mode, 3mV in full PWM mode
  • 1.8V to VDVIN input voltage range
  • 150mA output current (each LDO)
  • DVS range: 0.8V to 3.3V in 50mV steps
  • ±2% initial accuracy
  • Low quiescent current: 50µA (each LDO)
  • Low dropout voltage: 50mV @ 50mA
  • Low output noise: 45µVrms
  • Stable with ceramic output capacitors
  • 65dB PSRR at 1kHz
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2826 is a four output, programmable Power Management IC, optimized for high efficiency power support in Mobile Application Processors, Co-Processors, DSPs, GPS and Media Player chipsets. The device integrates a single 500mA PWM/PFM synchronous buck (step-down) regulator with three Low Dropout Regulators and a 400kHz I²C interface that provides programmable Dynamic Voltage Scaling (DVS), Power Sequencing, and individual output Enable/Disable controls allowing the user to optimally control all four outputs. The 4MHz synchronous buck regulator features a patented HyperLight Load® (HLL) architecture which minimizes switching losses and provides low quiescent current operation for high efficiency at light loads. Additional benefits of this proprietary architecture are low output ripple voltage and fast transient response throughout the entire load range with the use of small output capacitors, reducing the overall system size.Three high performance LDOs are integrated into the MIC2826 to provide additional system voltages for I/O, memory and other analog functions. Each LDO is capable of sourcing 150mA output current with high PSRR and low output noise. A 2% output voltage accuracy, low dropout voltage (150mV @ 150mA), and low ground current of 116µA (all three LDOs operating) makes this device ideally suited for mobile applications.

Additional Features
    • Fast-mode I2C control interface
    • Default start-up voltage states and sequencing
    • Fault indication processor flag - IRQb
    • -40°C to 125°C junction temperature range
    • Thermal shutdown and current-limit protection
    • Power On After Fault (POAF) function
    DC-DC Synchronous Buck
    • 2.7V to 5.5V input voltage range
    • 500mA continuous output current
    • HyperLight Load® mode
    • 25µA quiescent current
    • 90% peak efficiency; 85% at 1mA
    • Ultra-fast transient response
    • Dynamic Voltage Scaling (DVS) range: 0.8V to 1.8V
      • 0.8V to 1.2V in 25mV steps
      • 1.2V to 1.8V in 50mV steps
      • ±2% initial accuracy
      • Low output voltage ripple: 20mVpp in HyperLight Load®mode, 3mV in full PWM mode
    • LDOs
      • 1.8V to VDVIN input voltage range
      • 150mA output current (each LDO)
      • Dynamic Voltage Scaling (each LDO)
        • DVS range: 0.8V to 3.3V in 50mV steps
      • ±2% initial accuracy
      • Low quiescent current: 50µA (each LDO)
      • Low dropout voltage: 50mV @ 50mA
      • Low output noise: 45µVrms
      • Stable with ceramic output capacitors
      • 65dB PSRR at 1kHz
Parametrics
Name
Value
IOUT (A)
500
IOUT LDO (mA)
150/150/150
LDO
I2C and Dynamic Scaling from 0.8V to 3.3V
VOUT (V)
I2C and Dynamic Scaling from 0.8V to 1.8V
Type
PMIC
HLL Mode
Yes
Short Description
4MHz DC/DC HyperLight Load™ converter with 1.8V to DVIN Adj. via I2C & Dynamic Voltage Scaling 3 LDOs. Fast-mode (400kHz) I2C Control for Startup, Enables and Output Voltages. Optional Default Startup Sequence and Voltages. Fault Monitoring Flag (IRQb).
VIN Max (V)
5.5
Oja (C/W)
89
VIN Min (V)
2.7

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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
MIC2826-D9YMT-TR
0.000000
0.124904
14
UQFN
2.5x2.5x0.55mm
NiPdAu
e4
MIC2826-A0YMT-TR
0.000000
0.124904
14
UQFN
2.5x2.5x0.55mm
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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