Composite regulator MM3248
10Pages

Outline This IC is a 2-circuit type of MM324x series that is a low saturation regulator IC with 150mA output realizing low current consumption, low noise, and high ripple rejection using a CMOS process. The output voltage of the regulator is fixed and can be programmed between 1.5V and 5.0V upon request. it provides a switch pin to control each output and is an ideal IC for the portable equipment. Features 1. Current consumption (during off-state) 2. High accuracy output voltage 3. Dropout voltage 4. High ripple rejection 5. Operating temperature range 6. Output voltage 7. Output capacitor Applications 1. Cordless phones 2. Portable players 3. Digital still cameras 4. Portable game devices 5. PDAs • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

Current Limit Current Limit Function Output pin 2 Voltage-supply pin Output pin 1 Ground ON/OFF-Control pin CE L H Connect CE pin with VDD pin, when it is not used. Absolute Maximum Ratings Item Storage temperature Supply voltage CE input voltage Output voltage Output current Power dissipation (Ta=25°C) Symbol TSTG VDD VCE VO IOmax Pd Note1: 1 With the double sided PC Board of glass epoxy. (25 25 1.6mm copper plane 80%) • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed...

Recommended Operating Conditions Item Operating ambient temperature Operating voltage Output current (Except where noted otherwise, Ta=25°C, VDD=VO (typ.)+1V, VCE=VDD) Item Input current 1(OFF) No-Load input current 1 No-Load input current 2 VO1 Block Output voltage 1 Line regulation 1 Load regulation 1 Dropout voltage 1 Ripple rejection 1-1 Ripple rejection 1-2 VO1 temperature coefficient 1 Output short-circuit current 1 CE high threshold voltage 1 CE low threshold voltage 1 CE high threshold current 1 CE low threshold current 1 VO2 Block Output voltage 2 Line regulation 2 Load regulation...

Dropout voltage 2 Vio2 (V) Measurement Min. Typ. Max. conditions • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

Measuring Circuit Ceramic 0.1µF Application Circuit Ceramic 0.1µF Note 1. The output capacitor is required between output and GND to prevent the oscillation. 2. The output capacitor must be used in ESR stable area. It is possible to use a ceramic capacitor without ESR resistance for output. The ceramic capacitor must be used more than 0.1µF and B temperature characteristics. 3. The wire of VCC and GND is required to print full ground plane for noise and stability. 4. The input capacitor must be connected in 1cm from input pin. 5. In case the output voltage is above the input voltage, the...

150mA Dual Regulator MM3248D Series (Except where noted otherwise, Ta=25°C, VDD=VOUT (typ.)+1 V, VCE=VDD) Line Regulation Vol ■ Line Regulation Vo2 Input voltage (V) Input voltage (V) • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

Dropout Voltage-Output Current VO2 Dropout Voltage-Output Current VO1 Input Current-Input Voltage • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

Load transient response VO1 (Io=10 150mA) Load transient response VO1 (Io=10 150mA) Load transient response VO2 (Io=10 150mA) Load transient response VO1 (Io=10 150mA) Load transient response VO2 (Io=10 150mA) • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

Load transient response VO1 (Io=50 150mA) Load transient response VO2 (Io=50 150mA) Load transient response VO1 (Io=50 150mA) Load transient response VO2 (Io=50 150mA) Load transient response VO1 (Io=50 150mA) Load transient response VO2 (Io=50 150mA) • Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.

• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification. • The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.