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MCP16411

Low IQ Boost Converter with Auto Bypass

Status: Samples Available

Features:

  • Input Voltage Range: 0.8V (after start-up) to 5.25V
  • Low Device Quiescent Current: 4.5 μA Typically
  • Programmable Undervoltage Lockout (UVLO)
  • Automatic PFM/PWM Operation
  • Power Good and Die Over Temperature Output
  • Shutdown State : Output Discharge
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP16411 is a Boost regulator from the MCP1641X family of low quiescent current boost converters with integrated status indicators and wide input voltage range for a variety of battery powered applications. The regulator provides an automatic input-to-output voltage bypass operation which help in optimizing battery utilization and achieving high efficiency while fresh batteries’ nominal voltage is in the same range with the converter’s output value.

The MCP16411 use an automatic switchover from PWM to PFM mode for light load conditions, to maximize efficiency over a wide range of output current. The device can be powered by either single-cell, two-cell alkaline/NiMH batteries or single-cell Li-Ion/Li-Polymer batteries. A low-voltage designed architecture allows the regulator to start up without high inrush current or output voltage overshoot from a low input voltage. The start-up voltage is easily programmed by a resistive divider connected to the UVLO pin. If the resistive divider is not used, the default start-up voltage will be 0.85V. The 0.8V built-in UVLOSTOP helps prevent deep discharge of the alkaline battery, which may cause battery leakage. An open-drain Low Battery Output (LBO) pin will warn the user to replace the battery if the input voltage ramps down to the programmed UVLOSTART value.

The MCP16411 includes an additional feature to a low-voltage boost converter for safety: Over-temperature Output. Devices, such as personal care products, Bluetooth headsets or toys, will benefit from combined Power Good and Die Overtemperature (PGT) output, which flags a warning signal when the output level drops below 10% of its nominal value or the die temperature exceeds the factory programmed temp (75°C default). Both functions are implemented in the device on the same PGT pin.

The device also incorporates an output auto-discharge feature. While in shutdown, the device will automatically discharge the output capacitor using an internal switch.

Additional Features
  • Input Voltage Range: 0.8V (after start-up) to 5.25V
  • Low Device Quiescent Current: 4.5 μA Typically
  • Programmable Undervoltage Lockout (UVLO)
  • Automatic Input-to-Output Bypass Operation
  • Automatic PFM/PWM Operation
  • Power Good and Die Over Temperature Output
  • 1A Typical Inductor Peak Current Limit
  • Up to 96% Efficiency
  • Adjustable Output Voltage Range
  • Programmable Low Battery Output
  • Shutdown State : Output Discharge
  • Internal Synchronous Rectifier
  • Internal Compensation
  • Inrush Current Limiting and Internal Soft Start
  • Anti-Ringing Control
  • Thermal Shutdown
  • Available Packages:
    • 10-lead MSOP
    • 10-lead 3 mm x 3 mm TDFN
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
# of Outputs
1
Input Voltage Range Min (V)
0.8
Input Voltage Range Max (V)
5.25
Output Voltage Range Min (V)
1.8
Output Voltage Range Max (V)
5.25
Quiescent Current (mA) typ
0.0045
Switching Frequency (kHz)
500
Synchronous Rectifier
Yes
Operating Temp Range
-40 to +85
Vfb (V)
0.97
Light Load Efficiency Mode
Yes
Switch current (A) typ
1

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Data Sheets

Development Environment

  • Integrated Development Environments
Integrated Development Environments
ADM00867
MCP16411 Low Voltage Boost Converter ( ADM00867 )

The MCP1641X is a compact, high-efficiency, fixed frequency, low-voltage, synchronous step-up DC-DC converter with battery monitoring features. It provides an easy-to-use power supply solution for applications over a wide range of inputs: single-cell, two-cell, alkaline/NiMH batteries or single-cell Li-Ion/Li-Polymer batteries can be used. With the 1A Typical Peak Input Current Limit, MCP1641X can...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP16411-I/UN
0.023200
0.060000
10
MSOP
3x3mm
Matte Tin
e3
MCP16411T-I/UN
0.023200
0.200000
10
MSOP
3x3mm
Matte Tin
e3
MCP16411-I/MN
0.021000
0.041667
10
TDFN
3x3x0.8mm
Matte Tin
e3
MCP16411T-I/MN
0.021000
0.228788
10
TDFN
3x3x0.8mm
Matte Tin
e3
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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