M62290 [MITSUBISHI]
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER; 5.0V固定输出电压的DC -DC转换器
| 型号： | M62290 |
| 厂家： | 
Mitsubishi Group |
| 描述： | 5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER |
| 文件： | 总7页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
GENERAL DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
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.
IN
5
4
3
2
1
VCC
CLM
GND
COLLECTOR
Outline 5P5T
FEATURES
1
2
3
4
8 NC
COLLECTOR
GND
• Wide operation voltage range ·········· 6 to 15 V (typ.Vcc=12V)
•Low power dissipation
··········1.1mA (max.,Vcc=12V)
7 NC
6 NC
5 IN
•Built-in oscillator without peripheral devices (120KHz typ.)
•Built-in over current protection circuit
•Small 5-pin SIP and 8-pin SOP packages
CLM
VCC
Outline 8P2S-A
NC : NO CONNECTION
APPLICATIONS
Local voltage regulator of audio sets and general electric products
BLOCK DIAGRAM
OVER CURRENT
DETECTION RESISTOR
VCC
CLM
4
3
CURRENT LIMIT
CIRCUIT
OP Amp
1.25V
PWM
Comp
1
IN
Collector
5
OSC
.
(120KHz)
2
GND
OUT
1
(
/ 7 )
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
Vcc
Parameter
Supply voltage
Conditions
Ratings
16
Unit
V
Io
Output current
100
mA
mW
mW
5-pin SIP
450
Ta = 25°C
Ta > 25°C
Pd
K
Power dissipation
8-pin SOP
5-pin SIP
8-pin SOP
440
4.5
mW/ °C
mW/ °C
°C
Thermal derating
4.4
Topr
Tstg
Operating temperature
Storage temperature
-20 to +85
-40 to +125
°C
ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=12V, unless otherwise noted)
Limits
Block
Symbol
Parameter
Test conditions
Unit
Min.
6.0
Typ.
Max.
15
Vcc
Icc
Vo
Supply voltage
Supply current
Output voltage
V
µA
V
All
block
Without load
—
4.75
780
5.00
5
1100
5.25
30
Error
Amp.
Vcc= 6 to 15V
Vreg-L REF line regulation
mV
µA
kHz
%
IN input current
160
120
90
300
170
Iin
fosc
—
70
Oscillator frequency
Maximum on duty
Current limit voltage
Output leakage current
Oscillator
TDUTY
VTHCLM
ICL
Vcc - CLM
110
-1
140
170
1
mV
µA
V
CLM
Vcc = 15V, Vc = 15V
—
0.1
Output
Output saturation voltage Io = 100mA
0.3
Vsat
—
( 2 / 7 )
April 1997
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE vs.
SUPPLY VOLTAGE
CIRCUIT CURRENT vs.
SUPPLY VOLTAGE
800
5.2
5.1
750
700
5.0
4.9
4.8
650
600
6
8
10
12 14 16
4
6
8
10 12 14 16
SUPPLY VOLTAGE Vcc(V)
SUPPLY VOLTAGE Vcc(V)
INPUT CURRENT vs.
SUPPLY VOLTAGE
OSCILLATOR FREQUENCY vs.
SUPPLY VOLTAGE
220
200
180
160
140
120
130
120
110
100
90
10
12 14
16
6
8
6
8
10
12
14 16
SUPPLY VOLTAGE Vcc(V)
SUPPLY VOLTAGE Vcc(V)
CURRENT LIMIT VOLTAGE vs.
SUPPLY VOLTAGE
MAX. ON DUTY vs.
SUPPLY VOLTAGE
100
95
160
150
90
140
130
120
85
80
6
8
10
12 14 16
6
8
10
12
14 16
SUPPLY VOLTAGE Vcc(V)
SUPPLY VOLTAGE Vcc(V)
( 3 / 7 )
April 1997
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
OUTPUT VOLTAGE vs.
TEMPERATURE
CLM TERM. INPUT CURRENT vs.
SUPPLY VOLTAGE
12
11
10
5.2
Vcc=6V
5.1
5.0
Vcc=12V
9
8
7
Vcc=16V
4.9
4.8
-40 -20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
6
8
10
12 14 16
SUPPLY VOLTAGE Vcc(V)
SUPPLY CURRENT vs.
TEMPERATURE
INPUT CURRENT vs.
TEMPERATURE
800
750
250
Vcc=6V
Vcc=12V
Vcc=16V
700
200
150
100
650
600
550
Vcc=16V
Vcc=12V
Vcc=6V
500
-40-20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
-40 -20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
MAX. ON DUTY vs.
TEMPERATURE
OSCILLATOR FREQUENCY vs.
TEMPERATURE
160
140
120
100
100
95
Vcc=16V
Vcc=12V
Vcc=16V
Vcc=12V
90
Vcc=6V
Vcc=6V
85
80
80
60
-40 -20 0 20 40 60 80 100120140
TEMPERATURE Ta(°C)
-40 -20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
( 4 / 7 )
April 1997
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
CLM INPUT CURRENT vs.
CURRENT LIMIT VOLTAGE vs.
TEMPERATURE
TEMPERATURE
20
200
150
15
Vcc=6V
Vcc=6V
Vcc=12V
Vcc=12V
Vcc=16V
10
100
50
Vcc=16V
5
0
-40 -20 0 20 40 60 80100 120140
TEMPERATURE (°C)
-40 -20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
OUTPUT SATURATION VOLTAGE vs.
TEMPERATURE
200
150
100
50
0
Test condition: Ic=100mA
-40 -20 0 20 40 60 80100120140
TEMPERATURE Ta(°C)
( 5 / 7 )
April 1997
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
Application Circuit (5V Output DC-DC converter)
RCLM
0.09W
VIN (12V)
+
100µ F
4
3
Vcc
CLM
1KW
1KW
VOUT(5.0V,1A)
Collector
M62290
IN
5
1
+
100µ F
GND
2
150µ H
Fig.1 Example of application circuit of the M62290L/FP
•Current Limit Detection:
When the voltage drop between pin 3 and 4 becomes more than 140mV,
the Current Limit Detection circuit begins operating. The peak switch
current "Ipk" is limited to 140mV / RCLM. In the example of application
(fig.1), the current is limited to 1.5A.
The Expression of Circuit Constants
CONSTANTS
EXPRESSIONS
VO+VF
TON
TOFF
VIN - VCE(sat) - VO
1
fosc
(TON+TOFF)MAX
TOFF(MIN)
TON(MAX)
L(MIN)
fosc:120KHz(Vcc=12V)
TON
( TON + TOFF ) /
( 1 +
)
TOFF
1
fosc
- TOFF
( VIN - VCE(sat) - VO ) X TON(MAX)
DIo
1
2
DIo
Io +
Ipk
0.14
Ipk
RCLM
DVCLM:140mV(Vcc=12V)
• VF : Forward voltage drop of an external diode.
• Vsat : Output saturation voltage of an external switching transistor.
• DIO : Set between 1/3 and 1/5 of the maximum output current.
• An external transistor, diode and inductor must be have a peak current capability of
approximately greater than "Ipk".
( 6 / 7 )
April 1997
MITSUBISHI <Dig./Ana. INTERFACE>
M62290L/FP
5.0V FIXED OUTPUT VOLTAGE DC-DC CONVERTER
Application circuit characteristics
OUTPUT VOLTAGE vs.
SUPPLY VOLTAGE
EFFICIENCY vs. LOAD CURRENT
100
6
5
4
90
80
IL=0mA
3
IL=50mA
Vcc=6V
Vcc=8V
IL=100mA
70
2
1
0
IL=500mA
Vcc=12V
Vcc=15V
60
50
0
0
0
2
4
6
8
10 12 14 16
0
200 400 600 800 1000 1200
LOAD CURRENT (mA)
SUPPLY VOLTAGE Vcc (V)
OUTPUT VOLTAGE vs.
LOAD CURRENT
LOAD REGULATION vs.
SUPPLY VOLTAGE
0.10
0.08
0.06
0.04
0.02
0
5.2
5.1
5.0
4.9
4.8
Vcc=15V
Vcc=12V
Vcc=8V
1mA£IL£100mA
1mA£IL£200mA
1mA£IL£500mA
1mA£IL£1000mA
Vcc=6V
200 400 600 800 1000 1200
LOAD CURRENT Iload (mA)
6
8
10
12
14
16
SUPPLY VOLTAGE Vcc (V)
LINE REGULATION vs.
LOAD CURRENT
80
60
40
20
0
Test condition:
6V£Vcc£15V
200 400 600 800 1000 1200
LOAD CURRENT Iload(mA)
( 7 / 7 )
April 1997
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