Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MCP1252

Low Noise, Positive-Regulated Charge Pump

Status: In Production

Features:

  • Wide 2.1 to 5.0V input range
  • Fixed, regulated 3.3 V, 5.0 V, or adjustable (1.5 to 5.5 V) outputs
  • Supplies regulated output voltages for up to 120 mA loads
  • Low 60 µA supply current in no load conditions
  • High 2.5% voltage accuracy (on fixed voltage outputs)
  • High 650 kHz operation to aoivd interference with IF bands
  • Logic level shutdown control reduces current consumption to 0.1 µA during standby operation
  • Power-good output indicator with hysteresis
  • Thermal shutdown protection with hysteresis
  • Short circuit protection
  • Soft-start circuitry to minimize inrush current
  • -40 ºC to +85 ºC operation
View More
Overview
Documents
Development Environment
RoHS Information
Buy Now

Device Overview

Summary

The MCP1252-33X50 and MCP1252-ADJ are inductorless, positive regulating, low noise charge pump DC-to-DC converters. The MCP1252-33X50 has selectable outputs of either 3.3 or 5.0 V, while the MCP1252-ADJ has an adjustable output between 1.5 and 5.5 V. Both can deliver 120 mA of load current at the selected regulated output voltage. Since the device incorporates an automatic buck/boost feature, it will maintain the regulated output voltage whether the input voltage is above or below the output voltage. These charge pumps operateat a switching frequency of 650 kHz, and feature power saving shutdown pins, short circuit protection, thermal shutdown, and power-good pins that report out-of-regulation conditions.

Additional Features
    • Wide 2.1 to 5.0V input range
    • Fixed, regulated 3.3 V, 5.0 V, or adjustable (1.5 to 5.5 V) outputs
    • Supplies regulated output voltages for up to 120 mA loads
    • Low 60 µA supply current in no load conditions
    • High 2.5% voltage accuracy (on fixed voltage outputs)
    • High 650 kHz operation to aoivd interference with IF bands
    • Logic level shutdown control reduces current consumption to 0.1 µA during standby operation
    • Power-good output indicator with hysteresis
    • Thermal shutdown protection with hysteresis
    • Short circuit protection
    • Soft-start circuitry to minimize inrush current
    • -40 ºC to +85 ºC operation
Parametrics
Name
Value
Typical Active Output Current (mA)
120
Output Voltage (V)
Selectable 3.3V/5.0V, or Adjustable 1.5V to 5.5V
Typical Quiescent Current (µA)
120
Input Voltage Range (V)
2.1 to 5.5
Operating Temp. Range (°C)
-45 to 85
Device Description
Regulated

Documents

Jump to:

Data Sheets

06/23/2015
622KB

Supporting Collateral

Software Libraries/Firmware


Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP1252-33X50I/MS
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP1252-ADJI/MS
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP1252T-33X50I/MS
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
MCP1252T-ADJI/MS
0.025600
0.215600
8
MSOP
3x3mm
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy