MP6400 0.9-5V Low Quiescent Current Programmable-Delay Supervisory Circuit TSOT23

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MP6400 0.9-5V Low Quiescent Current Programmable-Delay Supervisory Circuit TSOT23

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MPS TSOT23 Power Management LDO Regulators

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MP6400 0.9-5V Low Quiescent Current Programmable-Delay Supervisory Circuit TSOT23

The MPS MP6400 is a Low Quiescent Current Programmable-Delay Supervisory Circuit. It operates from a 0.9 V to 5 V input. It is supplied in a TSOT23 package.

The MP6400 family is the microprocessor (µP) supervisory circuit which can monitor and provide reset function for system voltages from 0.4V.

Key Specifications

Part Number	MP6400
Function	Low Quiescent Current Programmable-Delay Supervisory Circuit
Input Voltage	0.9 V to 5 V
Package	TSOT23
Ordering Codes	MP6400

Features

Fixed Threshold Voltages for Standard Voltage Rails From 0.9V to 5V and Adjustable Voltage From 0.4V are Available
Low Quiescent Current: 1.6uA typ
Power-On Reset Generator with Adjustable Delay Time: 2.1ms to 10s
High Threshold Accuracy: ±1% typ
Manual Reset (MR ) Input
Open-Drain RESET Output
Immune to Short Negative SENSE voltage
Guaranteed Reset Valid to VCC=0.8V
6 Pin TSOT23 and 2mm×2mm QFN

Typical Application Circuit

Applications

DSP or Micro controller Applications
Laptop/Desktop Computers
PDAs/Hand-Held Products
Portable/Battery-Powered Products

Design Notes

Dissipation is (VIN − VOUT) × IOUT. Check it against the package thermal resistance at the real ambient temperature before committing to the full rated current.
Some low-noise LDOs require a minimum output capacitor ESR for loop stability — read the stability section before substituting a ceramic part.
Add a bypass capacitor on the reference pin where provided; it sets the output noise floor.
PSRR falls as the input-to-output differential shrinks, so headroom matters at low VIN.