MITSUMI
500mA Regulator
Monolithic IC MM156
500mA Regulator MM156 F
F
Outline
This IC is a small, stable power supply ...
MITSUMI
500mA
Regulator
Monolithic IC MM156
500mA
Regulator MM156 F
F
Outline
This IC is a small, stable power supply with output voltage precision of ±2% (when IO = 250mA), maximum output current of 500mA, and I/O voltage difference of 0.3V typ. at 250mA. Output noise reduction and output ON/OFF control pins are provided, making it ideal for portable equipment.
Features
1. No-load current consumption 2. I/O voltage difference 3. Ripple rejection rate 4. Output current 5. Output noise voltage 6. Output voltage rank 7. Output ON/OFF control
1.9mA typ. 0.3V typ. (IO=250mA) 64dB typ. (f=120Hz, VRIPPLE=1VP-P, IO=250mA) 500mA max. 75µVrms typ. 1.8 ~ 5.0V (0.1V steps) High ON, Low OFF
Package
SOP-7B
Applications
1. Cordless telephone 2. Portable equipment, etc.
Pin Assignment
765
1234
SOP-7B (TOP VIEW)
1 2 3 4 5 6 7
VO NC GND Cn CONT Sub VIN
MITSUMI
Equivalent Circuit Diagram
VIN
Cont
Bias
Thermal shutdown
Driver
500mA
Regulator MM156 F VO
Current limitter
Reference
GND
Pin Description
Pin No. 1
Pin name VOUT
Function Output pin
2 NC No connection
3
GND
Ground
4 Cn Noise decrease pin
Cn
Internal equivalent circuit diagram
VOUT
Error Amp.
VOUT Cn
Error Amp.
MITSUMI
Pin No. 5
Pin name CONT
Function Control pin
COUT H L
Output ON OFF
500mA
Regulator MM156 F Internal equivalent circuit diagram
Cont
225k 300k
6 Sub Substrate The 6pin must be connected to GND.
7 VIN Input pin
VIN Bias
Absolute Maximum Ratings (Ta=25°C)
Item Storage temperature
Suppl...