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MITSUBISHI SEMICONDUCTORS <Standard Linear ICs>
M62212P/FP/GP
GENERAL PURPOSE DC-DC CONVERTER
DESCRIPTION
M62212 is designed as a general purpose DC-DC converter.
This small 8 pin package contains many functions allowing
simpler peripheral circuits and compact set design.
The output transistor is open collector and emitter follower
type. This makes the control STEP-UP,STEP-DOWN and
INVERTING converter.
FEATURE
• Wide operation power supply voltage range •••••••2.5 ~ 18V
• Low power consumption••••••••••••••••••••••••1.3mA typ
• High speed switching is possible.(300kHz)
• Output short protection circuit and ON/OFF control are used.
The dead-time control and the soft-start operation are
possible
• Package variation : 8pin DIP/SOP/SSOP8
PIN CONFIGURATION(TOP VIEW)
Collector
output 1
Emitter
output
2
GND 3
Cosc 4
8 VCC
7 IN
6 FB
5 DTC
OUTLINE 8P2S-A (FP)
8P2X (GP)
8P4 (P)
APPLICATIONS
General electric products, DC-DC converter
BLOCK DIAGRAM
COSC 4
IN 7
OSC
VCC
OP Amp
1.25V
VCC
8
UVLO
VTH : 2.3V
PWM Comp
Collector
1 output
1.25V
VCC
Short protection
circuit
2 Emitter
output
1.86V
R
SQ
1.15V 0.3V
65
FB DTC
(1/8)
3
GND

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MITSUBISHI SEMICONDUCTORS <Standard Linear ICs>
M62212P/FP/GP
GENERAL PURPOSE DC-DC CONVERTER
ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted)
Symbols
Items
Vcc Power supply voltage
Conditions
Ratings
19
Units
V
Vo Output voltage
19 V
Io Output current
150 mA
Pd Power dissipation
Ta=25°C
625 (P) 360(FP) 250(GP) mW
Ktheta Thermal derating ratio
Ta>25°C
5.00 (P) 2.88 (FP) 2.00(GP) mW/°C
Topr
Operating ambient temperature
-20°C ~ +85
°C
Tstg
Storage temperature
-40°C ~ +125
°C
Electrical Characteristics ( Ta=25°C, Vcc =12V, Cosc=100pF unless otherwise noted )
Block Symbol
Items
Test condition
All
device
Std.
voltage
section
VCC
I CC ST
V REF
L INE
IB
Range of power supply voltage
Standby current
Standard voltage
Line regulation
Input bias current
Output "OFF" status
Voltage follower
VCC=2.5 ~ 18V
A V Open loop gain
Error
amp.
section
GB
VOM +
VOM -
I
+
OM
I OM -
Unity gain bandwidth
Output high voltage
Output low voltage
Output sink current
Output source current
VFB=1.86V
VIN =1V
f OSC
Oscillation frequency
Oscil-
lator
section
VOSCH
VOSCL
I OSC CH
Upper limit voltage of oscillation waveform
Lower limit voltage of oscillation waveform
Cosc charge current
I OSC DIS1 Cosc discharge current 1
UVLO
section
VTH ON
VTH OFF
VHYS
Start-up threshold voltage
Shut-down threshold voltage
Hysteresis
VIN =1V
VIN =1V
VHYS = VTHON - VTHOFF
Limits
Units
Min Typ Max
2.5 18 V
1.3 1.8 mA
1.19 1.25
5
1.31 V
12 mV
500 nA
80 dB
0.6 MHz
1.82
2.62 V
400 mV
6 mA
-60 -30 uA
110 kHz
1.0
0.45
V
V
-40 uA
10 uA
2.2 2.3 2.4 V
2.25 V
20 50
80 mV
(2/8)

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MITSUBISHI SEMICONDUCTORS <Standard Linear ICs>
M62212P/FP/GP
GENERAL PURPOSE DC-DC CONVERTER
Electrical Characteristics ( Ta=25°C, Vcc =12V, Cosc=100pF unless otherwise noted )
Block Symbol
Items
Test condition
Short
pro-
tection
circuit
Output
section
VTH FB
VTH DTC
VTL DTC
I CH1
I DIS1
I CH2
I DIS2
I CL
VSAT1
VSAT2
FB threshold voltage
VIN =1V,VDTC=0.7V
Latch mode "H" threshold voltage VIN =1V,VFB =2.11V
Latch mode "L" threshold voltage VIN =1V,VFB =2.11V
DTC charge current when start-up VDTC=0.7V,VFB =2.11V
DTC discharge current 1
VDTC=0.7V,VFB =2.11V
DTC charge current when stable state VDTC=0.7V,VFB = 0.7V
DTC discharge current 2
VDTC=0.2V,VFB =2.11V
Collector output leak current
Collector output saturation voltage 1
Collector output saturation voltage 2
VCE=18V , VCC=18V
Emitter GND,
IC=150mA,VE=0V
Emitter follower,
IE=50mA,VC=12V
Limits
Units
Min Typ Max
1.86
1.15
V
V
0.3 V
-45 µA
50 µA
-10 µA
15 µA
-1 1 µA
0.3 1.1 V
1.6 V
(3/8)