The soft-start can reduce a rush current by the Cs capacitor on start-up.
Package is SOT89-5A which can be the high radiation of heat on small space.
Features
1. Maximum input voltage
2. Output current
3. No load input current
4. Input current (OFF)
5. Output voltage range
6. Output voltage accuracy
7. Dropout voltage
8. Line regulation
9. Load regulation
10. Ripple rejection
11. Thermal shutdown
12. Output Capacitor
6V
1A
50µA typ.
1µA max.
1.2~5.0V
±1% or ±15mV
0.7V max. (I
O
=1A, V
O
=3V)
±0.2%/V max.
130mV max.(I
O
=1~300mA)
70dB typ. (f=1kHz)
Built-in
1µF
Package
SOT89-5A
Applications
1.
2.
3.
4.
TV
BD recorder/player
Printer
Game
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Model Name
M
M
3
4
7
9
A
a
a
Function Type
A
CE=H-Active,
with Discharge Function
12
~
b
c
d
e
b
Voltage Output RANK
The combination of each regulator
output voltage is specified by
design serial numbers.
It is assigned in order from 12.
Output voltage can be set in the
range.
50
c
Package
P
SOT89-5A
R
L
F
B
d
Packing Specifications
R HOUSING (SOT89-5A_Standard)
L HOUSING
F HOUSING
B HOUSING
e
E
EMBOSS TAPE
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Block Diagram
VDD
CE
Bias
C
S
Vref
VOUT
Thermal
Shutdown
GND
Current
Limit
Pin Assignment
5
4
1
2
3
1
2
3
4
5
CE
GND
C
S
VDD
VOUT
SOT89-5A
(TOP VIEW)
Pin Description
Pin No.
Pin name
ON/OFF-Control pin
CE
L
H
OUTPUT
OFF
ON
Functions
1
CE
Connect CE pin with VDD pin,
when it is not used.
2
3
4
5
GND
C
S
VDD
VOUT
GND pin
Soft-Start pin (Note)
Voltage-Supply pin
Output pin
Note : Must be connect capacitor to Soft-Start pin.
Refer to 9 and 19 for details.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Absolute Maximum Ratings
Item
Storage Temperature
Junction Temperature
Supply Voltage
CE input Voltage
Output Voltage
Cs Voltage
Output Current
Power Dissipation (Note1)
(Except where noted otherwise Ta=25°C)
Symbol
Tstg
T
jMAX
V
DD
V
CE
V
OUT
V
CS
I
OMAX
Pd
Ratings
−55~+150
150
−0.3~+6.5
−0.3~+6.5
−0.3~VDD+0.3
−0.3~VDD+0.3
1.2
1780
76.2mm t=1.6mm
Units
°C
°C
V
V
V
V
A
mW
Note1 : JEDEC51-7 standard 114.3mm
Recommended Operating Conditions
Item
Operating Ambient Temperature
Operating Voltage
Output Current
Symbol
Topr
Vop
I
OUT
(Except where noted otherwise Ta=25°C)
Ratings
-40~+85
1.6~6.0
0~1
Units
°C
V
A
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Electrical Characteristics 1
Item
Input Current (OFF)
No-Load Input Current
Output Voltage
I
DDOFF
I
DD
V
OUT
(Except where noted otherwise V
DD
=V
OUT
(TYP.)+1V, V
CE
=V
DD
, Ta=25°C)
Measurement conditions
V
CE
=0V
I
OUT
=0mA
I
OUT
=10mA, 1.5 V
OUT
I
OUT
=10mA, V
OUT
1.5V
V
OUT
(typ.)+0.5V V
DD
6.0V
I
OUT
=100mA, 2.0V V
OUT
0.99
-0.015
Min. Typ. Max. Units
0.1
50
1.0
80
1.01
+0.015
µA
µA
V
Symbol
Line Regulation
V
LINE
2.5V V
DD
6.0V
I
OUT
=100mA, V
OUT
2.0V
0.05
0.2
%/V
Load Regulation
Dropout Voltage
V
LOAD
Vio
1mA I
OUT
1000mA
Please refer to another page
f=1kHz, Vripple=0.5V, I
OUT
=10mA
1.5 V
OUT
75
130
mV
V
Ripple Rejection
RR
f=1kHz, Vripple=0.5V, I
OUT
=10mA
V
DD
=2.5V, V
OUT
1.5V
70
dB
V
OUT
Temperature Coefficient (Note2)
Output Current
Output Short-Circuit Current (Note2)
Thermal ShutDown Detect Temperature
(Note2)
Thermal ShutDown Release Temperature
(Note2)
Output Rise Time (Note2)
CE High Threshold Voltage
CE Low Threshold Voltage
CE Pin Current
Output NMOS ON Resistance (Note2)
V
OUT
/ T
I
OUT
I
short
T
SD
T
SR
tr
V
CEH
V
CEL
I
CE
R
DON
I
OUT
=100mA,
-40 Top +85°C
1
V
OUT
=0V
100
ppm/°C
A
30
150
125
mA
°C
°C
ms
6.0
0.3
V
V
µA
C
S
=0.1µF
1.2
V
CE
=2.0V
V
CE
=0V, V
DD
=4V
1.5
0.3
30
Note2 : The parameter is guaranteed by design.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
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