MITSUMI
Composite Regulator MM1448
Composite Regulator
Monolithic IC MM1448
Outline
This IC was developed as a composite power supply for the RF section of mobile telephones. It is composed
of three normal voltage regulator circuits, of which the output of one circuit is divided for two switching
circuits.
The regulator output voltage is fixed, and each can be set between 2.0V and 5.0V according to the
customer's needs. Output noise voltage noise reduction is made possible by using the noise reduction pin.
Also, switch pins are provided to control each output, making this an ideal IC for use in portable equipment.
Features
1. Input/output voltage difference
2. Output noise voltage
3. Output voltage precision
4. No-load input current
5. Input voltage
6. Max. output current
7. Output ON/OFF control
to
Rank
X
B
C
VSOP-16
Applications
1. Mobile telephones, PHS
2. Video cameras
3. Portable communication equipment
4. Battery-powered portable equipment
Pr
od
Package
uc
ts
V
O
1
2.5 ± 0.08
2.8 ± 0.08
2.9 ± 0.08
be
Rank Table
di
Regulator Output Voltage
V
O
2
2.8 ± 0.08
2.8 ± 0.08
2.9 ± 0.08
V
O
3
3.0 ± 0.08
3.0 ± 0.08
2.9 ± 0.08
sc
on
Vo1 : 0.2V max. Vo2 : 0.2V max. Vo3 : 0.3V max.
Vo1 : 30µVrms typ. Vo2 : 30µVrms typ. Vo3 : 30µVrms typ.
Vo1, Vo2, Vo3 : ±3%
Vo1 : 170µA typ. Vo2 : 170µA typ. Vo3 : 170µA typ.
12V max.
200mA max.
High : ON, Low : OFF
tin
ue
d
MITSUMI
Composite Regulator MM1448
Pin Assignment
16 15 14 13 12 11 10 9
1
2
3
4
5
6
7
8
V
O
1
NS1
PS1
V
IN
PS3
NS3
PS2
NS2
9
10
11
12
13
14
15
16
V
O
2
GND
PS4
V
O
4
NC
V
O
5
PS5
V
O
3
1 2 3 4 5 6 7 8
VSOP-16
(TOP VIEW)
Absolute Maximum Ratings
Pr
od
Item
Storage Temperature
Operating Temperature
Power Supply Voltage
Output Current (1 circuit)
Power Consumption
uc
ts
to
be
Symbol
T
STG
T
OPR
V
IN
I
O (
n
)
Pd
Rating
-40~+125
-20~+75
-0.3~+12
200
400 (IC only)
di
Unit
°C
°C
V
mA
mW
Recommended Operating Conditions
Item
Operating Temperature
Operating Voltage
Regulator Output Current (1 circuit)
Symbol
T
OP
V
OP
I
O (
n
)
Rating
-20~75
1.8~12
0~100
Unit
°C
V
mA
sc
on
tin
ue
d
Equivalent Circuit Diagram
MITSUMI
Composite Regulator MM1448
Electrical Characteristics
Item
Standby current
Operating currents 1~3
(for 1 circuit; all
3 circuits the same)
V
O
1
Output voltage
Minimum input/
output voltage difference
Load fluctuation
Input fluctuation
Output voltage
temperature coefficient
Ripple rejection rate
Output noise voltage
Output rise time
V
O
2
Output voltage
Minimum input/
output voltage difference
Load fluctuation
Input fluctuation
Output voltage
temperature coefficient
Ripple rejection rate
Output noise voltage
Output rise time
V
O
3
Output voltage
Minimum input/
output voltage difference
Load fluctuation
Input fluctuation
Output voltage
temperature coefficient
Ripple rejection rate
Output noise voltage
Output rise time
V
O
4
Output voltage
Output current
Output rise time
Reactive current
V
O
5
Output voltage
Output current capacity
Output rise time
Reactive current
PS output control pin
Psn pin OFF voltage
Psn pin ON voltage
Psn pin inflow current
Typical model : MM1448B (Except where noted otherwise, Ta=25°C, V
IN
=4V, C
IN
=10µF, C
VO (
n
)
=4.7µF+1Ω, C
ns (
n
)
=0.01µF)
Symbol
Iins
I
IN
1~3
Measurement conditions
V
PS
1=V
PS
2=V
PS
3=0V
No-load (unload)
V
PS
1=3V, V
PS
2=V
PS
3=V
PS
4~V
PS
5=0V
V
PS
2=3V, V
PS
1=V
PS
3=V
PS
4~V
PS
5=0V
V
PS
3=3V, V
PS
1=V
PS
2=V
PS
4~V
PS
5=0V
Io1=30mA
V
IN
=2.6V, Io1=30mA
Io1=0~100mA
V
IN
=4.0~8.0V, Io1=30mA
Tj=-20~75°C, I
O
1=30mA
Min. Typ. Max. Unit
0
3
µA
170
350
µA
V
O
1
Vdmin1
VLo1
VLi1
V
O
1/ T
RR1
Vn1
TdH1
V
O
2
Vdmin2
VLo2
VLi2
V
O
2/ T
RR2
Vn2
TdH2
V
O
3
2.72
2.80
2.88
0.20
60
20
V
V
mV
mV
ppm/°C
sc
on
Io2=30mA
Io3=30mA
4V
V
PS
n=1.6V
tin
2.72
50
2.92
50
2.82
50
2.82
80
1.6
f=120Hz, V
RIPPLE
=1V
P-P
, Io1=30mA
f=10Hz~10kHz, Io1=30mA, Cns1=0.01µF
Io1=30mA, V
PS
1=0 4V
ue
50
d
±100
60
30
0.04
2.80
±100
60
30
0.04
3.00
±100
60
30
0.04
0.02
0.5
0.02
2
60
0.8
2.88
0.20
60
20
dB
µVrms
ms
V
V
mV
mV
ppm/°C
V
IN
=2.6V, Io2=30mA
Io2=0~100mA
V
IN
=4.0~8.0V, I
O
2=30mA
be
f=120Hz, V
RIPPLE
=1V
P-P
, Io2=30mA
f=10Hz~10kHz, Io2=30mA, Cns2=0.01µF
Io2=30mA, V
PS
2=0 4V
di
Tj=-20~75°C, I
O
2=30mA
60
0.8
3.08
0.20
60
20
dB
µVrms
ms
V
V
mV
mV
ppm/°C
to
Vdmin3
VLo3
VLi3
V
O
3/ T
RR3
Vn3
TdH3
V
O
4
I
O
4
TdH4
Iq4
V
O
5
I
O
5
TdH5
Iq5
V
OFF
V
ON
I
PS
n
V
IN
=2.8V, Io3=30mA
Io3=0~100mA
V
IN
=4.0~8.0V, I
O
3=30mA
Tj=-20~75°C, I
O
3=30mA
od
uc
ts
Pr
f=120Hz, V
RIPPLE
=1V
P-P
, Io3=30mA
f=10Hz~10kHz, Io3=30mA, Cns3=0.01µF
Io3=30mA, V
PS
3=0 4V
Io3=Io4=20mA, Io5=40mA
V
O
4=2.72V, Io3=Io5=0mA
Io4=20mA, C
VO
4=1µF, V
PS
4=0 4V
I
O
4=20mA, V
O
3=3V
Io3=Io4=20mA, Io5=40mA
V
O
5=2.72V, Io3=Io4=0mA
Io5=40mA, C
OUT
5=1µF, V
PS
5=0
I
O
5=40mA, V
O
3=3V
60
0.8
V
O
3
0.1
0.8
V
O
3
0.1
2.8
0.4
10
dB
µVrms
ms
V
mA
ms
mA
V
mA
ms
mA
V
V
µA
MITSUMI
Composite Regulator MM1448
Measurement Circuit
Input-Output Differential Voltage
Input-Output
Differential Voltage (mV)
od
Characteristics
uc
ts
Note 1: Output capacitance definitely is required to perform regulator and switch phase compensation. Also,
please note that oscillation may occur depending on the ESR value.
Note 2: Vo pin output noise voltage is reduced using NS pin capacitance value. Even if there is no need to
take output noise voltage into consideration, connection of a capacitor is recommended for stable
operation and improvement of AC characteristics.
Note 3: 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.
to
be
Pr
Line regulation (mV)
250
200
150
100
50
0
0
50
100
150
di
Line Regulation
20
10
0
-10
-20
4
6
8
10
12
sc
on
V
IN
(V)
Output current (mA)
tin
ue
d
MITSUMI
Composite Regulator MM1448
Load Regulation
Load regulation (mV)
Thermal Shutdown
Output voltage (V)
4
3
2
1
0
0
50
100
150
200
60
40
20
0
-20
-40
-60
0
50
100
Output current (mA)
Temperature (°C)
Output voltage (V)
4
1000
ESR (Ω)
2
1
0
0
100
200
300
10
1
sc
on
0.1
0.01
0.01
Output current (mA)
tin
0.1
3
100
Area of stable operation (Stable Region)
ue
Instability Region
Unmeasurement Region
d
1
10
100
Output Current
ESR Stable Region
I
OUT
(mA)
di
5.00E-01
4.00E-01
Note: Reference data
V
O
(V)
2.00E-01
1.00E-01
0.00E+00
uc
od
0
ts
0.02
0.04
0.06
0.08
0.1
3.00E-01
to
V
O
4
V
O
5
I
O
(A)
V
O
4
V
O
5
0
0.02
0.04
0.06
0.08
0.1
Iq (A)
Pr
6.00E-03
5.00E-03
4.00E-03
3.00E-03
2.00E-03
1.00E-03
0.00E+00
I
O
4 (5) -
Iq
4 (5)(V
O
3=3V)
I
O
(A)
be
I
O
4 (5) - V
O
34 (35)(V
O
3=3V)
stm32/stm8
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
