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MIC5231

Ultra Low Iq LDO Regulator

Status: In Production

Features:

  • Extremely low quiescent current: only 0.65µA
  • No output capacitor requirement
  • Stable with ceramic or tantalum capacitors
  • IttyBitty® SOT-23-5 surface-mount package
  • 10mA output drive
  • Low 150mV at 10mA dropout voltage
  • Tight load and line regulation
  • Low temperature coefficient
  • Logic-level enable input
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC5231 µCap low-dropout voltage regulator is intended for low-output-current biasing applications. It features extremely low ground current, not greater than 4µA under all load and temperature conditions, making it efficient and ideal for keep-alive applications in devices such as notebook computers.

The MIC5231 offers better than 2% initial accuracy and low dropout (typically 150mV at 10mA output current). An output capacitor is not required for stable operation, decreasing cost and board space. Tiny ceramic chip capacitors may be used to improve line transient response.

The MIC5231 also features a control pin which allows the regulator to be shut down when not required. Its shutdown-state draws zero current, benefitting battery-powered applications.

The MIC5231 is available in fixed output voltages of 2.75V, 3.0V, 3.3V, and 5.0V in the small SOT-23-5 IttyBitty® package. Contact Micrel for other voltage options.

Additional Features
    • Extremely low quiescent current: only 0.65µA
    • No output capacitor requirement
    • Stable with ceramic or tantalum capacitors
    • IttyBitty® SOT-23-5 surface-mount package
    • 10mA output drive
    • Low 150mV at 10mA dropout voltage
    • Tight load and line regulation
    • Low temperature coefficient
    • Logic-level enable input
Parametrics
Name
Value
Product Type
Single LDOs
# of Out
1
IOUT #1
10
IOUT #2
n/a
IOUT #3
n/a
IOUT #4
n/a
IOUT (mA)
10
VIN Min (V)
3.5
VIN Max (V)
12
VOUT (V)
2.75, 3.0, 3.3, 5.0
Voltage Drop Typ (mV)
150
IGND Typ (µA)
65
Tol Typ %
±2
PSRR 1 kHz (dB)
50
Soft Start Pin
Load Dump
Rev Bat
Reverse Current Protect

Documents

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Data Sheets

  
185KB

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
MIC5231-3.3YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC5231-5.0YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC5231-2.75YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC5231-3.0YM5-TR
0.017400
0.049000
5
SOT-23
-
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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