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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Low-Saturation 300mA Regulators
Monolithic IC MM159X Series
Outline
This is a 300mA output low-saturation regulator IC with low noise and high ripple rejection ratio. Ceramic capacitors can be used for the output capacitors, and it has an output noise reduction pin and ON/OFF control pin.
Features
1. High precision output voltage 2. Output current 3. Input/output voltage difference 4. High ripple rejection ratio 5. Wide operating temperature range 6. Output voltage 7. Output capacitor ±2.0% 300mA 0.15V typ. (Io=100mA) 70dB typ. -40~+85°C 1.5~5.0V (0.1V step) 1µF(ceramic)
Package
SOP-8D/G
Applications
1. Constant voltage power supply for devices that use batteries 2. Constant voltage power supply for portable communications devices 3. Constant voltage power supply for household electronics products
Block Diagram
VIN VOUT
Bias
CONT
Thermal shutdown
w
w
w
.d
e e h s a t a
GND
. u t4
m o c
Driver
Current limitter
Reference
CN
www.DataSheet4U.com
MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Pin Assignment
8
7
6
5
1
2
3
4
SOP-8D/G (TOP VIEW)
1 2 3 4 5 6 7 8
VOUT NC GND CN CONT NC NC VIN
Pin Description
Pin No. 1 Pin name VOUT Function Output pin Internal equivalent circuit diagram
VOUT
Error Amp.
2 3 4
NC GND CN
Ground pin Noise decrease pin
VOUT CN
Error Amp.
MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Pin No. 5
Pin name COUT
Function Control pin COUT H L Output ON OFF
Internal equivalent circuit diagram
CONT
225k 300k
6 7 8
NC NC VIN
No connection No connection Input pin
VIN
Bias
Absolute Maximum Ratings
Item Storage temperature Supply voltage Allowable loss
(Ta=25°C) Symbol TSTG VIN Pd Ratings -55~+150 -0.3~+13 950 1 Units °C V mW
*
Note : 1 With the double sided PC Board of glass epoxy (Copper plane 80%, 192 142 1.2mm)
*
Recommended Operating Conditions
Item Operating temperature Output current Operating voltage Symbol TOPR IOUT VOP Ratings -40~+85 0~300 VO Typ.+0.5~13 Units °C mA V
MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Electrical Characteristics 1
Item No-Load input current Input current (OFF) ICC
(Except where noted therwise, Ta=25°C, VIN=VO+2V, VCONT=1.6V) Measurement conditions Io=0mA VCONT=0V Io=1mA VIN=VO-0.2V, IO=100mA VIN=VO+1.5~Vo+2.5V, IO=1mA Io=0~300mA Tj=-40~+85°C f=120Hz VRIPPLE=1V, IO=100mA fBW=20~80kHz, CN=470pF, IOUT=100mA fBW=20~80kHz, CN=OPEN, IOUT=100mA VCONT=5V 10 1.6 -0.3 50 0.98 0.15 10 20 100 70 75 150 20 30 VIN+0.3 0.4 Min. Typ. Max. Units 2.2 0 5 1 1.02 0.3 20 120 mA µA V V mV mV ppm/°C dB µVrms µA V V
Symbol ICCOFF VOUT VIO V1 V2 VOUT/ T RR VN ICONT VCONTH VCONTL
* Dropout voltage 3 *
Line regulation Load regulation VOUT temperature coefficient 1
Output voltage 2
*
Ripple rejection 1
*
Output noise voltage 1
*
CONT pin input current CONT pin high threshold level CONT pin low threshold level
Note1 : 1. The parameter is guaranteed by design. Note2 : 2. Please ref.