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Consumption current: 45μA (under no load condition) /
0.1μA (under no power condition)
500mA Regulator IC
MM344xx
Announced on September 25, 2008
Overview
In recent years, as with mobile equipment there are growing demands for lower power consumption and smaller equipment in the area of non-portable or stationary equipment. In line with this trend in demands, lower current consumption and smaller packages are required for ICs used in the stationary equipment.
This product is the series regulator that has been developed to be the best choice for stationary as well as mobile equipment in which power consumption shall be reduced when the power is off or the equipment is in its standby mode. The regulator can output the maximum current of 500mA. This product has a chip enable function to allow further reduction of consumption current.

§ Features
1.
Consumption current under no load condition : 45μA typ.
2.
Consumption current when power is off : 0.1μA typ.
3.
High ripple rejection : 70dB / 1kHz
4.
Output capacitor : Compatible with 1μF ceramic capacitor
5.
Protection circuit : Current limit circuit and Thermal shutdown circuit
6.
Package : SOP-7

§ Main specifications
Input voltage range
2 ~ 6V
Output voltage range
1.5 ~ 5.0V
Output voltage accuracy
VOUT±2%
Maximum output current
500mA
Consumption current
45μA typ. (Under no load condition)
0.1μA typ. (When power is off)
Output capacitor capacity
1μF
Difference between input
and output voltages
300mV typical and 500mV maximum (Io=500mA)
(For the product with 3.0V output voltage)
Input voltage fluctuation
0.02%V typ. (Io=30mA)
Load fluctuation
50mV typical and 140mV maximum (Io=1~500mA)
Package
SOP-7
External dimensions
5.00 Χ 4.40 Χ 1.55 (in mm / size of terminal is not included)