MITSUMI
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor MM1215 and 1216
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor
Monolithic ICs MM1215 and 1216
Outline
These ICs are high-precision, high-voltage stabilized power supply devices which, by employing an externally
mounted power transistor are able to drive loads at large currents. The input/output voltage difference is a low
0.2V, and an internal protection circuit ensures that the devices can be used in a wide range of portable
equipment. Output on/off control is also provided.
Features
1. Input voltage
16V max.
2. Input/output voltage difference
0.2V typ.
3. Maximum driving current
15mA max.
4. No-load input current
250A typ.
5. Thermal shutdown circuit provided
6. Output ranks
E : 9.0V2% I : 4.02%
F : 6.0V2% J : 3.02%
G : 5.0V2% Z : 3.32%
H : 4.5V2%
Package
SOT-25A (MM1215 N, MM1216 N)
*
The output voltage rank appears in the boxes.
Applications
1. Handheld computers
2. Portable transceivers
3. Cordless phones
4. Other portable equipment which uses batteries
Model
Low
High
MM1215
ON
OFF
MM1216
OFF
ON
C
ONT
Pin Output Logic
1
Drive
2
GND
3
CONT
4
V
IN
5
V
OUT
5
4
1
2
3
SOT-25A
(TOP VIEW)
Pin Assignment
MITSUMI
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor MM1215 and 1216
Equivalent Circuit Diagram
Absolute Maximum Ratings
Item
Symbol
Ratings
Units
Storage temperature
T
STG
-40~+125
C
Operating temperature
T
OPR
-20~+75
C
Power supply voltage
Vd max.
-0.3~16
V
Recommended power supply voltage
V
IN
2.5~12
V
CONT pin voltage
V
COH
1
-0.3~V
IN
+0.3
V
Recommended driving current
0~10
mA
Allowable loss
Pd
150
mW
MITSUMI
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor MM1215 and 1216
Electrical Characteristics
(Ta=25C) : Using the 2SB956 output transistor
Item
Symbol
Measurement conditions
Min. Typ. Max. Unit
E
9.00
F
6.00
G
5.00
Output voltage
Vo
V
IN
=Vo+1V Io=100mA
H
Vo-2% 4.50 Vo+2%
V
I
4.00
J
3.00
Z
3.30
Consumption current
Iccql
V
IN
=Vo+1V
250
400
A
Minimum I/O voltage difference
Vd min.
V
IN
=Vo-0.1V
0.2
0.3
V
Input fluctuation rate
V2
V
IN
=(Vo+1V)~12V
0.01
0.1
%/V
Load fluctuation rate
V1
V
IN
=Vo+1V, Io=0~500mA
0.01 0.03 %/mA
Output voltage temperature coefficient
Vo/T
Tj=-20~+75C
100
ppm/C
Ripple rejection rate
RR
V
IN
=Vo+2V, f=120Hz
50
60
dB
V
RIPPLE
=1V, Io=100mA
Output noise voltage
VN
V
IN
=Vo+1V, Io=100mA
150
Vrms
f=10~80kHz
MM1215
Input current while off
Iccq2
V
IN
=Vo+1V
25
40
A
C
ONT
pin current
I
ON
V
CONT
=0.6V
1
3
A
C
ONT
pin current
I
OFF
V
CONT
=2.4V
5
10
A
MM1216
Input current while off
Iccq2
V
IN
=Vo+1V
25
40
A
C
ONT
pin current
I
ON
V
CONT
=2.4V
5
10
A
C
ONT
pin current
I
OFF
V
CONT
=0.6V
1
3
A
CONT pin level
High
V
h
2.4
V
Low
V
L
0.6
V
MITSUMI
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor MM1215 and 1216
Measuring Circuit
Measurement circuit 1
Measurement circuit 2
Note1: When the C
ONT
pin is unused, it should be connected to ground for the MM1215 and to Vcc for the
MM1216.
Note 2: The cause of oscillation is due to set wiring and capacitance changes in capacitor caused by
temperatures changes, so please take extra care in placing the wires.
Characteristics
(MM1215)
3
4
5
2
1
0
0
1
2
3
4
5
6
Input voltage (V)
Output voltage (V)
0
0
100
200
300
400
500
0.1
0.2
0.3
0.4
0.5
Output current (mA)
I/O voltage difference (V)
300
400
500
200
100
0
0
2
4
6
8
10 12 14 16 18
Input voltage (V)
Consuption current (
A)
-5
0
0
4
6
8
10
12
14
18
16
5
10
15
20
-10
-15
-20
Output voltage (V)
Input fluctuation rate (mV)
Output voltage characteristic
No-load input current
I/O voltage difference (V
IN
=2.8V)
Input fluctuation rate
MITSUMI
Low-Saturation Three-Pin Regulators with Externally Mounted Power Transistor MM1215 and 1216
0
0
100
200
300
400
500
10
20
30
-10
-20
-30
Output current (mA)
Load fluctuation rate
Temperature (
C)
2.98
3
-25
0
25
50
75
100
125
3.02
3.04
3.06
2.96
2.94
2.92
Output voltage (V)
0.01
0.1
1
10
0.01
0.1
1
10
100
MM1215J
(Ceramic capacitor reference data when 10
F.)
1000
Output Current (mA)
100
Unmeasurement region
Instability Region
Stable Region
ESR (
)
Frequency (Hz)
10
20
30
40
50
60
70
80
90
100
0
10
100
1k
10k
100k
Ripple rejection rate (dB)
Load fluctuation
Output temperature characteristic
Ripple rejection rate
ESR Stable region
Application Circuits
Note: Stable region reference data at this current.
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