MM342XX Mitsumi Electronics, Corp., MM342XX Datasheet

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MM342XX

Manufacturer Part Number
MM342XX
Description
1000ma Regulator Ic
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
Outline
Features
Package
Applications
This IC is a 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 1000mA.
This IC has a chip enable function and the model implemented in the smaller SSON-6 package is also
available for the high-density packaging.
1. Consumption current under no load condition
2. Consumption current when power is off
3. High ripple rejection
4. Output capacitor
5. Protection circuit
SSON-6
HSOP-8A
SOT-25A
1. TVs
2. Portable equipments
3. DVD, Blu-ray recorders
1000mA Regulator IC
Monolithic IC MM342XX
45µA typ.
0.1µA typ
70dB / 1kHz
Compatible with 1µF ceramic capacitor
Current limit circuit and Thermal shutdown circuit

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MM342XX Summary of contents

Page 1

... Regulator IC Monolithic IC MM342XX Outline This 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 1000mA. ...

Page 2

Block Diagram GND Pin Assignment HSOP-8A (TOP VIEW OUT NC 4 GND Bias Thermal Current Shutdown Limit ...

Page 3

Pin Description HSOP-8A Pin No. Pin name 1 V Voltage−supply pin DD 2 connection V Outout pin 3 OUT GND Ground pin 5 ON/OFF−Control pin CE Low CE 6 High Connect CE pin with V when it is ...

Page 4

Recommended Operating Conditions Item Operating ambient temperature Operating voltage Output current Electrical Characteristics 1 Item Input current(OFF) No-Load input current Output voltage Line regulation Load regulation Dropout voltage Ripple rejection 1 (Note2) Ripple rejection 2 (Note2) V temperature coeffi cient ...

Page 5

Electrical Characteristics 2 Output voltage Vo1, Vo2 Measurement conditions 1.5V 1.6V 1.7V 1.8V 1.9V 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V 3.6V 3.7V 3.8V 3.9V 4.0V 4.1V 4.2V 4.3V 4.4V 4.5V ...

Page 6

Measuring Circuit A Application Circuit (Reference example of external parts) · Output capacitor · Input capacitor · Note 1. The output capacitor is required between output and GND to prevent oscillation. 2. The ESR of capacitor must be defi ned ...

Page 7

About Power dissipation This IC's GND pin and Heat Spreader Bottom effectively radiate heat. By increasing these copper foil pattern area of PCB, Power dissipation improves. Please kindly design PCB pattern taking power dissipation. Power Dissipation 2000 1800 1600 1400 ...

Page 8

Characteristics (Vo=1.5V) Output - Input voltage 2.0 1.5 1.0 0.5 0 Input voltage V Output voltage - Output current 2.0 1.5 1.0 0.5 0.0 0 500 1000 Output current I Line regulation 1.6 1.55 1.5 1.45 ...

Page 9

Ripple Rejection 0 −10 −20 −30 −40 −50 −60 −70 −80 −90 0.01 0 Frequency (kHz) Load transient response (Io=10 C =1µF,C =1µ :500mA/div O V 20µS/div CE:1V/div ESR stability area 10 1 0.1 0.01 ...

Page 10

Characteristics (Vo=3.0V) Output - Input voltage 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 Input voltage V Output voltage - Output current 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 500 1000 Output current ...

Page 11

Ripple Rejection 0 −10 −20 −30 −40 −50 −60 −70 −80 −90 0.01 0 Frequency (kHz) Load transient response (Io=10 C =1µF,C =1µ GND I :500mA/div O V ESR stability area 10 Instable area 1 Stable ...

Page 12

Characteristics (Vo=5.0V) Output - Input voltage 6.0 5.0 4.0 3.0 2.0 1.0 0 Input voltage V Output voltage - Output current 500 1000 Output current I Line regulation ...

Page 13

Ripple Rejection 0 −10 −20 −30 −40 −50 −60 −70 −80 −90 0.01 0 Frequency (kHz) Load transient response (Io=10 C =1µF,C =1µ :500mA/div O GND V :500mV/div O ESR stability area 10 Instable area ...

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