MM1571x
Features
1. I/O voltage difference 0.10V typ. (IO=50m A) 2. Output noise voltage 30µVrms typ. (Cn=0.01µF) 3. Remended maximum output current 150m A max. 4. No-load current consumption 85µA typ. 5. Built-in overcurrent protection and thermal shutdown circuits 6. Output voltage rank 1.8 ~ 5.0V (0.1V steps) 7. Output ON/OFF control function High: ON, Low: OFF
Package
SOT-25A (MM157 N, MM161 N) contains the output voltage rank.
- Applications
1. Cordless telephone 2. Cellular telephone, PHS 3. Portable MD 4. Other battery-powered portable equipment
Pin Assignment
MM157
5 4 1 2 3 4 5
VIN GND Cont Noise VO
MM161
1 2 3 4 5
Cont GND Noise VOUT VIN
1 w w w
. t a d h s a t e e
. u 4
SOT-25A (TOP VIEW) m o c
- The ponent MM161
N is MM157
N with changed pin configuration.
..
MITSUMI
150m A Regulator MM157
N, 161
Equivalent Circuit Diagram
Cin 1µF
Bias
Co 1µF
Cont Reference Driver
Current limitter
Thermal shutdown GND
Noise
Cn...
