Mitsubishi M62290L, M62290FP Datasheet

5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER

GENERAL DESCRIPTION

The M62290L/FP is a general purpose DC-DC converter which
provides 5.0V fixed output.
It is possible to simplify peripheral circuits and to design compact and
low cost sets because this IC includes a lot of functions in small 5- or
8-pin packages.
Especially this is most suitable for a local voltage regulator of audio
sets as a converter from 12V to 5V.

FEATURES

• Wide operation voltage range ·········· 6 to 15 V (typ.Vcc=12V)

•Low power dissipation ··········1.1mA (max.,Vcc=12V)

•Built-in oscillator without peripheral devices (120KHz typ.)

•Built-in over current protection circuit

•Small 5-pin SIP and 8-pin SOP packages

MITSUBISHI <Dig./Ana. INTERFACE>

M62290L/FP

PIN CONFIGURATION (TOP VIEW)

IN

5

VCC

4

CLM

3

GND

2

M62290L

COLLECTOR

1

Outline 5P5T

M62290FP

COLLECTOR

GND
CLM
VCC

1
2
3
4

8

NC

7

NC

6

NC

5

IN

APPLICATIONS

Local voltage regulator of audio sets and general electric products

BLOCK DIAGRAM

OVER CURRENT

VCC

OP Amp

DETECTION RESISTOR

IN

5

1.25V
OSC

.

(120KHz)

CLM

34

CURRENT LIMIT
CIRCUIT

PWM
Comp

Outline 8P2S-A

NC : NO CONNECTION

1

Collector

1

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2

GND

OUT

April 1997

MITSUBISHI <Dig./Ana. INTERFACE>

M62290L/FP

5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER

ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted)

Symbol Parameter Conditions Ratings Unit

Vcc

Io

Pd Power dissipation

K

Topr

Tstg

Supply voltage
Output current

Thermal derating

Operating temperature
Storage temperature

Ta = 25°C

Ta > 25°C

5-pin SIP

8-pin SOP

5-pin SIP

8-pin SOP

16 V

100 mA
450 mW

4.5

4.4

-20 to +85

-40 to +125

mW440

mW/ °C
mW/ °C

°C
°C

ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=12V, unless otherwise noted)

Block Symbol Parameter Test conditions Unit

All

block

Error
Amp.

Oscillator

CLM

Output

Vcc Supply voltage

Icc Supply current

Vo

Vreg-L

Iin

fosc

VTHCLM

ICL

Vsat

Output voltage
REF line regulation

IN input current
Oscillator frequency 120 kHz
Maximum on dutyTDUTY 90 %

Current limit voltage 140 mV
Output leakage current

Output saturation voltage

Vcc= 6 to 15V

Vcc - CLM
Vcc = 15V, Vc = 15V

Io = 100mA

Min. Typ. Max.

6.0 15 V

—

70 170

110 170

-1 1

—

Limits

780

5.004.75 5.25

160

1100Without load

5 30

300

—

0.1 0.3

µA—

V

mV

µA

µA

V

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2

April 1997

TYPICAL CHARACTERISTICS

MITSUBISHI <Dig./Ana. INTERFACE>

M62290L/FP

5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER

OUTPUT VOLTAGE vs.

SUPPLY VOLTAGE

5.2

5.1

5.0

4.9

OUTPUT VOLTAGE Vo(V)

4.8
6 8 10 12 14 16

SUPPLY VOLTAGE Vcc(V)

INPUT CURRENT vs.

SUPPLY VOLTAGE

220

200

CIRCUIT CURRENT vs.

SUPPLY VOLTAGE

800

750

700

650

CIRCUIT CURRENT Icc(µA)

600

4 6 8 10 12 14 16

SUPPLY VOLTAGE Vcc(V)

OSCILLATOR FREQUENCY vs.

SUPPLY VOLTAGE

130

120

180

160

140

INPUT CURRENT Iin(µA)

120

6 8 10 12 14 16

SUPPLY VOLTAGE Vcc(V)

MAX. ON DUTY vs.

SUPPLY VOLTAGE

100

95

90

85

MAX. ON DUTY TDUTY(%)

110

100

90

OSCILLATOR FREQUENCY fosc(kHz)

6 8

SUPPLY VOLTAGE Vcc(V)

CURRENT LIMIT VOLTAGE vs.

160

150

140

130

10 12 14 16

SUPPLY VOLTAGE

80

6 8 10 12 14 16

SUPPLY VOLTAGE Vcc(V)

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CURRENT LIMIT VOLTAGE VTHCLM(mV)

120

6 8 10 12 14 16

SUPPLY VOLTAGE Vcc(V)

April 1997