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M62203FP
3.3 V, 2.7 V Two-Channel Fixed-Output General-Purpose DC-DC
Converter
REJ03F0094-0100Z
Rev.1.0
Sep.19.2003
Description
The M62203FP is an integrated circuit developed as a two-channel (3.3 V and 2.7 V) fixed-output general-purpose DC-
DC converter.
Peripheral elements are incorporated in a small 8-pin package, enabling peripheral circuitry to be simplified, and
compact, low-cost set design to be achieved.
In addition, the M62203FP has an on-chip reset circuit that monitors power supply voltage VCC (5 V) and output
voltage Vout (3.3 V), enabling erroneous system operation to be prevented.
Features
Wide operating power supply voltage range: 4 to 15 V (5 V Typ.)
Low current dissipation: 1.0 mA (VCC = 5 V, no load)
On-chip 5 V, 3.3 V dual voltage system detection reset circuitry
On-chip oscillation circuit not requiring peripheral elements (110 kHz Typ.)
8-pin SOP package
Applications
General electronic products such as mobile and portable devices
Pin Configuration (Top View)
Cout1
GND
Cout2
Vcc
1
2
3
4
8 IN1
7 RESET
6 Cd
5 IN2
Package: 8P2S-A
Rev.1.0, Sep.19.2003, page 1 of 11

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M62203FP
Block Diagram
Reference
voltage
1.25V
Oscillato
(110kHz)
Vcc Cd
46
IN1; 3.3V
25µA
7 RESET
comp.
(3.3 V detection)
comp.
(5 V detection)
0.6µA
Vcc
Cout1 1
PWM comp.
op amp
op amp
85
IN1(3.3V) IN2(2.7V)
PWM comp.
2
GND
3 Cout2
Absolute Maximum Ratings
Item
Power supply voltage
DC-DC converter block output drive current
Reset circuit block output inflow current
Internal power consumption
Thermal reduction ratio
Operating ambient temperature
Storage temperature
Symbol
Vcc
Io
IoRESET
Pd
Kθ
Topr
Tstg
Unless specified otherwise noted, Ta = 25ºC)
Ratings Unit Conditions
16 V
30 mA ch1, ch2
6 mA
440 mW Ta = 25°C
4.4
mW/ºC
Ta > 25°C
20 to +85
ºC
40 to +125 ºC
Rev.1.0, Sep.19.2003, page 2 of 11

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M62203FP
Electrical Characteristics
Block
Item
All blocks
Power supply voltage
range
Current dissipation
DC-DC converter block
Error amp Output voltage
Oscillator
Output
Line regulation
Input current 1
Input current 2
Oscillation frequency
Maximum on-duty
Output leakage current
Output saturation voltage
Reset block
Reset circuit
Detection voltage 1
Hysteresis voltage 1
Detection voltage 2
Hysteresis voltage 2
Delay constant current
Delay time
Output constant current
Output low voltage
Output high voltage
Symbol
Vcc
Icc
Vo1
Vo2
Vreg-L
Iin
Iin
fosc
TDUTY
ICL
Vsat
Vs1
Vs1
Vs2
Vs2
IPD
tpd
IOC
VOL
VOH
(Unless specified otherwise noted, VCC = 5 V, Ta = 25ºC)
Limits
Min. Typ. Max. Unit Test Conditions
4.0 5.0 15
V
1.0 1.5
mA No output load
3.15 3.30 3.45 V
Ch1 output
2.57 2.70 2.83
Ch2 output
5 15 mV
150 450
µA
100 300
µA
65
110 160
KHz
90 %
1 1
V
1.2 2.0 V Io = 10 mA, Darlington
connection type
3.8
30
2.57
30
1.1
5
40
0.8Vo1
4.0
50
2.70
50
0.6
10
25
4.2
80
2.83
80
0.3
20
17
0.2Vo1
mV
V
mV
µA
msec
µA
µA
V
V
VCC = 5 V detection
Ch1 output (3.3 V) detection
Cd = 4700pF
Vcc = 5V, Vo = 1/2 × Vcc
IoRESET = 4mA
Rev.1.0, Sep.19.2003, page 3 of 11