MITSUMI
Regulator IC with the Soft-Start MM192x Series
Regulator IC with the Soft-Start
Monolithic IC MM192x Series
Outline
This IC is 1A regulator IC with soft-start. When Cs pin is connected with a capacitor, the output voltage is
started up slowly. This IC can reduce a rush current by the soft-start.
Therefore a transformer in a power supply for this IC can be small, and it is possible to reduce a total cost in
the power supply system. And this IC can be turned off by Cont pin.
Package TO-252-5 or HSOP-8 were used for this device.
Features
1.
2.
3.
4.
5.
6.
Input Voltage Range
Output Voltage Range
Output Voltage accuracy 1 (V
OUT
1.5V) :
Output Voltage accuracy 2 (V
OUT
1.5V) :
Maximum Output Current
Supply Current
2.4V~12V
12V~5.1V
V
OUT
±30mV
V
OUT
±2%
1A
1mA typ. (No-Load Input Current)
1µA max. (OFF)
0.3V max. (I
O
=500mA), 0.6V max. (I
O
=1A)
10mV typ., 20mV max. (I
O
=250mA)
20mV typ., 100mV max. (I
O
=1mA~1A)
1µF
10msec typ. (Cs Capacitor=0.1µF)
Package
TO-252-5
HSOP-8A
Applications
1. DVD Recorders
2. Blu-ray Disc Recorders
3. TVs
Ph
as
ed
7. Dropout Voltage
8. Line Regulation
9. Load Regulation
10. Output Capacitor
11. Output Rise Time
12. With ON/OFF Control Pin
O
ut
Pr
od
uc
ts
MITSUMI
Regulator IC with the Soft-Start MM192x Series
Block Diagram
V
IN
Bias
Soft start
C
ont
Reference
C
S
Protect
R
Amp
V
O
Ru
Rcs
Thermal
shutdown
GND
Current
limitter
Pin Assignment
1
2
3
4
5
Cont
V
IN
GND
V
O
Cs
Pr
od
O
ut
8
7
6
5
5
1
2
3
4
uc
1
2
3
4
ts
ed
Ph
as
TO-252-5
(TOP VIEW)
HSOP-8A
(TOP VIEW)
1
2
3
4
5
6
7
8
V
O
NC
GND
Cs
Cont
NC
NC
V
IN
MITSUMI
Regulator IC with the Soft-Start MM192x Series
Pin Description
TO-252-5
Pin No.
Pin name
Functions
ON/OFF−Control pin
Cont
Low
High
OUTPUT
OFF
ON
HSOP-8A
Pin No.
1
2
3
4
Pin name
V
O
NC
GND
Cs
Functions
Output pin
No connection
Ground
Soft-start pin
ON/OFF−Control pin
Cont
Low
High
OUTPUT
OFF
ON
1
Cont
Connect Cont pin with V
IN
pin,
when it is not used.
2
3
4
5
V
IN
GND
V
O
Cs
Voltage−supply pin
Ground
Output pin
Soft-start pin
5
Cont
Connect Cont pin with V
IN
pin, when it is not used.
6
7
8
NC
NC
V
IN
No connection
No connection
Voltage−supply pin
Absolute Maximum Ratings
Item
Storage Temperature
Supply Voltage
Power Dissipation
(Except where noted otherwise Ta=25°C)
Symbol
T
STG
V
IN
Pd
Pr
V
O
od
Recommended Operating Conditions
Item
Operating Ambient Temperature
Operating Voltage
Output Current
Symbol
T
JOP
V
OP
I
O
Ph
as
ed
Note1 : With the double sided PC Board of glass epoxy
(Copper plane 80%, 150 100 1.0
t
mm)
Note2 : With the double sided PC Board of glass epoxy
(Copper plane 80%, 37 37 1.6
t
mm)
O
Ratings
−40~+150
13.2
2.5(Note1)
TO-252-5
1.8(Note2)
HSOP-8A
uc
ts
ut
Units
°C
V
W
(Except where noted otherwise Ta=25°C)
Ratings
-40~85
V
O
2.0V 2.4~12
2.0V Vo (typ.)+0.5~12
0~1
Units
°C
V
A
MITSUMI
Regulator IC with the Soft-Start MM192x Series
Electrical Characteristics 1
Item
Input Current(OFF)
No-Load Input Current
Iinoff
Iin
(Except where noted otherwise V
IN
=V
O
+1V, V
Cont
=V
IN
, Ta=25°C)
Measurement conditions
V
Cont
=0V
I
O
=0mA
I
O
=250mA
V
O
1.5V
-2
-30
10
20
1
Min. Typ. Max. Units
1
2
2
30
20
100
0.3
0.6
70
±100
10
63
10
2
1
110
130
150
90
20
117
30
µA
mA
%
mV
mV
mV
V
V
dB
ppm/°C
ms
kΩ
µA
V
V
°C
Symbol
Output Voltage Tolerance
V
O
I
O
=250mA
V
O
1.5V
Line Regulation
Load Regulation
Dropout Voltage 1
Dropout Voltage 2
V
LINE
V
LOAD
Vio1
Vio2
RR
V
OUT
/ T
tr
Rcs
I
Cont
V
Cont
H
V
Cont
L
TSD
V
IN
=V
O
+1.5~V
O
+2.5V, I
O
=250mA
1mA I
O
1A
V
IN
=Vo-0.2V, I
O
=500mA
V
IN
=Vo-0.2V, I
O
=1A
-40 T
OP
85°C (Note3)
f=1kHz, Vripple=1V, I
O
=250mA (Note3)
V
Cont
=L H~V
O
0.9, Cs=0.1µF (Note3)
V
OUT
Temperature Coefficient
Output Rise Time
Cs Discharge Resistance
Cont Pin Input Current
Cont Pin High Threshold Level
Cont Pin Low Threshold Level
Thermal shutdown
Ph
as
ed
O
Note3 : The parameter is guaranteed by design.
Note4 : The parameter has Thermal shutdown hysteresis.
ut
Pr
(Note3, 4)
od
V
Cont
=5V
uc
ts
Ripple Rejection
MITSUMI
Regulator IC with the Soft-Start MM192x Series
Electrical Characteristics 2
Model No.
MM1921C
MM1921Z
MM1921D
MM1921E
MM1921F
MM1921G
MM1921H
MM1921J
MM1921K
MM1922A
MM1922B
MM1922C
MM1922D
MM1922E
MM1922F
MM1922G
MM1922H
MM1922J
MM1922K
MM1923A
MM1923B
MM1923C
MM1923D
MM1923E
MM1923F
MM1923G
MM1923H
MM1923J
MM1923K
MM1924A
MM1924B
MM1924C
MM1924D
MM1924E
MM1924F
MM1924G
MM1924H
MM1924J
MM1924K
MM1925A
MM1925B
MM1923W
MM1923Y
(Except where noted otherwise V
IN
=V
O
+0.5V, I
O
=1mA, Ta=25°C)
Measurement Conditions
Output Voltage (V)
Min.
1.170
1.230
1.270
1.370
1.470
1.568
1.666
1.764
1.862
1.960
2.058
2.156
2.254
2.352
2.450
2.548
2.646
2.744
2.842
2.940
3.038
3.136
3.234
3.332
3.430
3.528
3.626
3.724
3.822
3.920
4.018
4.116
4.214
4.312
4.410
4.508
4.606
4.704
4.802
4.900
4.998
3.283
3.773
Typ.
1.2
1.26
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
3.35
3.85
Max.
1.230
1.290
1.330
1.430
1.530
1.632
1.734
1.836
1.938
2.040
2.142
2.244
2.346
2.448
2.550
2.652
2.754
2.856
2.958
3.060
3.162
3.264
3.366
3.468
3.570
3.672
3.774
3.876
3.978
4.080
4.182
4.284
4.386
4.488
4.590
4.692
4.794
4.896
4.998
5.100
5.202
3.417
3.927
Ta=25°C
V
IN
=2.4V
I
O
=250mA
ed
as
Ph
O
Ta=25°C
V
IN
=V
O
+1V
I
O
=250mA
ut
Pr
od
uc
ts
嵌入式系统
