Mitsubishi M62221FP Datasheet

3.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER

GENERAL DESCRIPTION

The M62221 is a general purpose DC-DC converter which
provides a 3.0V fixed output voltage.
It is possible to simplify the peripheral circuit and to design compact
and low cost sets because this IC, housed in a small 5- or 8-pin package
includes necessary peripheral components.
Especially this is most suitable for CD-ROM, Disk Drive sets and
PDA as a converter from 5V to 3.0V .

MITSUBISHI <Dig./Ana. INTERFACE>

M62221L/FP

PIN CONFIGURATION (TOP VIEW)

5

IN

4

VCC

3

CLM

2

GND

M62221L

1

COLLECTOR

FEATURES

• Wide operation supply voltage range ·········· 4 to 15 V

• Low power consumption ·········· 900 µA(max.)

• Built-in oscillator without external components (110kHz typ.)

• Built-in over current protection circuit

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

APPLICATIONS

CD-ROM, PDA, general purpose electric products

BLOCK DIAGRAM

OVER CURRENT

VCC

OP Amp

DETECTION RESISTOR

CURRENT LIMIT
CIRCUIT

34

CLM

COLLECTOR

GND
CLM
VCC IN

Outline 5P5T

1
2
3
4

Outline 8P2S-A

M62221FP

8
7
6
5

NC: NO CONNECTION

NC
NC
NC

IN

PWM Comp

5

1.25V
OSC

(110KHz)

2

GND

1

Collector

OUT

( 1 / 3 )

April. 1997

MITSUBISHI <Dig./Ana. INTERFACE>

M62221L/FP

3.0V 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

KTHETA

Topr
Tstg

Supply voltage
Output current

Thermal derating

Operating ambient temperature
Storage temperature

Ta=25°C

Ta>25°C

5-pin SIP
8-pin SOP

5-pin SIP
8-pin SOP

16

100 mA
450 mW

4.5

4.4

-20 to +85

-40 to +125

ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=5V, unless otherwise noted)

Block Symbol

All

block

Error
Amp.

Oscillator

CLM

Output

Vcc Supply voltage

Icc

Vreg-L

Iin

fosc

TDUTY

VTHCLM

ICL

Vsat

Vo

Parameter

Supply current
Output voltage
REF line regulation
IN input current
Oscillator frequency 110
Maximum on duty
Current limit voltage 150 mV
Output leakage current
Output saturation voltage

Test conditions

Vcc= 4 to 12V

Vcc - CLM
Vcc = 12V, Vc = 12V

Io = 100mA

Min. Typ. Max.

4.0

—

—

65

120 180

-1 1

—

Limits

15

660

3.002.85 3.15
5

100

90 %

900Without load

15
300
155

—

0.4 0.7

V

mW440

mW/ °C
mW/ °C

°C
°C

Unit

V

µA

V

mV

µA

kHz

µA

V

( 2 / 3 )

April. 1997