Microchip Technology Inc
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MIC2877

2MHz 6.5A Isw Synchronous Boost Regulator

Status: In Production

Features:

  • Typical 6.5A Input Peak Current Limit
  • Up to 95% Efficiency
  • Fully Integrated, High Efficiency, 2MHz Switching Frequency
  • Bidirectional True Load Disconnect, Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • Controlled Pre-Charge Current Limit at Start-Up
  • Ultra-Fast Transient Response
  • Input Voltage Range from 2.5V to 5.5V
  • 1.5A, VIN = 2.5V and VOUT = 5V
  • 2A, VIN = 3V and VOUT = 5V
  • Adjustable
  • Fixed Versions: 4.75V, 5V, 5.25V, 5.5V
  • Integrated Anti-Ringing Switch for EMI Reduction
  • Typically Less than 2µA Shutdown Current
  • Internal Compensation
  • Bypass Mode for VIN ≥ VOUT
  • Power Good (PG) Output
  • Overcurrent Protection and Thermal Shutdown
  • Available Package: 8-pin FTQFN 2mm x 2mm
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2877 is a compact and highly efficient 2MHz synchronous boost regulator with a 6.5A (typical) switch. It features a bidirectional true load disconnect function that prevents any leakage current between the input and output when the device is disabled (EN = GND), protecting the input supply and improves the start-up performance.

The MIC2877 has the input voltage range between 2.5V and 5.5V and provides a 2A output continuous current for VIN = 3V and VOUT = 5V.  Fixed output and adjustable output  versions are available.

The MIC2877 operates in Bypass Mode automatically when the input voltage is higher or equal to the target output voltage. At light loads, the boost converter goes to Pulse Frequency Modulation (PFM) mode to improve the efficiency. In shutdown mode, the regulator typically consumes less than 2µA.

The MIC2877 also features an integrated anti-ringing switch to minimize EMI, overvoltage and overcurrent protection, UVLO and thermal shutdown. The MIC2877 is available in an 8-pin FTQFN 2mm x 2mm package.

Additional Features
    • Typical 6.5A Input Peak Current Limit
    • Up to 95% Efficiency
    • Fully Integrated, High Efficiency, 2MHz Switching Frequency
    • Bidirectional True Load Disconnect, Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
    • Controlled Pre-Charge Current Limit at Start-Up
    • Ultra-Fast Transient Response
    • Input Voltage Range from 2.5V to 5.5V
    • Maximum Output Current:
      • 1.5A, VIN = 2.5V and VOUT = 5V
      • 2A, VIN = 3V and VOUT = 5V
    • Output Voltage Range:
      • Adjustable
      • Fixed Versions: 4.75V, 5V, 5.25V, 5.5V
    • Integrated Anti-Ringing Switch for EMI Reduction
    • Typically Less than 2µA Shutdown Current
    • Internal Compensation
    • Bypass Mode for VIN ≥ VOUT
    • Power Good (PG) Output
    • Overcurrent Protection and Thermal Shutdown
    • Available Package: 8-pin FTQFN 2mm x 2mm
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
2.5
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
Vin
Output Voltage Range Max (V)
5.5
Quiescent Current (mA) typ
.125
Switching Frequency (kHz)
2000
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 85
Vfb (V)
0.9
Duty Cycle Max (%)
93.6
SHUTDOWN Current (µA) (Typ)
1
Light Load Efficiency Mode
Yes
Switch current (A) typ
6.5

Documents

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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC2877 High Current Sync Boost Regulator
MIC2877 High Current Sync Boost Regulator ( ADM00831 )

MIC2877 is a compact and highly-efficient 2MHz synchronous boost regulator with a 6.5A switch. It features a bidirectional true load disconnect function which prevents any leakage current between the input and output when the device is disabled. MIC2877 operates in bypass mode automatically when the input voltage is greater than the target output voltage. At light loads, the boost converter goes...

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RoHS Information

Part Number
Device Weight
Shipping Weight
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2877-5.0YFT-TR
0.076800
8
UQFN
2x2x0.6mm
NiPdAu
e4
Rohs icon
efup china icon
MIC2877-4.75YFT-TR
0.076800
8
UQFN
2x2x0.6mm
NiPdAu
e4
Rohs icon
efup china icon
MIC2877-5.5YFT-TR
0.076800
8
UQFN
2x2x0.6mm
NiPdAu
e4
Rohs icon
efup china icon
MIC2877-AYFT-TR
0.076800
8
UQFN
2x2x0.6mm
NiPdAu
e4
Rohs icon
efup china icon
MIC2877-5.25YFT-TR
0.076800
8
UQFN
2x2x0.6mm
NiPdAu
e4
Rohs icon
efup china icon
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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