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MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Microminiature Low-Power Consumption Low-Saturation Regulator
Monolithic IC MM1385
Outline
This IC is a microminiature stabilized power supply device featuring an output voltage precision of within 2% and output currents of up to 200mA; the input/output voltage difference at 50mA is only 0.1V. This chip is provided with an output noise reduction pin and output on/off control pin, and is ideal for use in portable equipment.
Features
1. 2. 3. 4. 5. 6. 7. No-load input current I/O voltage difference Ripple rejection ratio Output current Output noise voltage Output voltage rank Output on/off control 95A typ. 0.1V typ.(Io=50mA) 70dB typ. 150mA max. 35Vrms typ. 2~3.3V(0.1V step), 3.5V/3.8V/4V/4.2V/4.5V/4.8V/5V/5.2V High ON, Low OFF
Package
SOT-25A (MM1385 N) The output voltage rank appears in the boxes.
*
Applications
1. 2. 3. 4. Cordless phones Portable phones, PHS Portable minidiscs Other portable equipment which uses batteries
Pin Assignment
1 2 3 1 2 3 4 5 SOT-25A CONT GND NOISE VOUT VIN
5
4
MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Block Diagram
Absolute Maximum Ratings
Item Storage temperature Operating temperature Power supply current Output current Power consumption Symbol TSTG TOPR VCC IOUT Pd Ratings -40~+125 -20~+75 -0.3~+12 200 150 Units C C V mA mW
Recomnended Operating Conditions
Item Operating temperature Output current Operating voltage Symbol Top Iop Vop Ratings -20~+75 0~150 1.8~12 Units C mA V
MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Electrical Characteristics
Item Output voltage No-load consumption current Input current while off I/O voltage difference Input fluctuations Load fluctuation Output voltage temperature coefficient Ripple rejection rate Output noise voltage CONT pin current while on CONT pin high level CONT pin low level
(Except where noted otherwise,Ta=25C) Symbol Vo Iccq1 Iccq2 Vd min. V1 V2 Vo/ T RR Vn ION H L Measurement conditions VIN=Vo+1V, Io=30mA, VIN=Vo+1V, Io=0mA VIN=Vo+1V, VCONT=0V VIN=Vo-0.2V, Io=50mA VIN=Vo+1V~10V, Io=50mA VIN=Vo+1V, Io=0~100mA Tj=-20~+75C, VIN=Vo+1V, Io=30mA VIN=Vo+1V, Io=30mA, VRIPPLE=1VP-P, f=120Hz VIN=Vo+1V, f=20~80kHz, Io=30mA, Cn=0.01F VCONT=1.6V 1.6 -0.3 50 0.1 10 30 100 70
35 (3V item)
Min. Typ. Max. Units
VOUT -2%
VOUT 95
VOUT +2%
V A A V mV mV ppm/C dB Vrms
190 0.1 0.2 20 60
5
10
VIN +0.3V
A V V
0.4
Measuring Circuit
Output Voltage Rank
Rank W A Z X B V C Y I D E F Voltage 5.2V 5.0V 4.8V 4.6V 4.5V 4.2V 4.0V 3.8V 3.6V 3.5V 3.3V 3.2V Rank G H J K L M N P R S T U Voltage 3.1V 3.0V 2.9V 2.8V 2.7V 2.6V 2.5V 2.4V 2.3V 2.2V 2.1V 2.0V
MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Characteristics
No-load input current
Consuption current (mA) Ripple rejection rate (Hz)
Ripple rejection rate (VIN=4V, IO=30mA, Vripple=1V, COUT=4.7F)
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100
2 1.5 1 0.5 0 0 2 4 6 8 10
10
100
1k
10k
100k
1M
Input voltage (V)
Frequency (Hz)
Consuption current (VIN=4V)
Consuption current (mA)
9 8 7 6 5 4 3 2 1 0
Output noise voltage (VIN=4V, IO=30mA, COUT=4.7F)
Output noise voltage (Vrms)
100 80 60 40 20 0 0.001 0.01 0.1
0
20
40
60
80 100 120 140 160
Output current (mA)
Noise pin capacitance (F)
I/O voltage difference (VIN=2.8V)
I/O voltage difference (V)
0.3 0.25 0.2 0.15 0.1 0.05 0
Input fluctuation (IO=30mA)
Input fiuctuation (mV)
20 10 0 -10 -20 4 5 6 7 8 9 10 11 12 13 14
0 20 40 60 80 100 120 140 160 180 200
Output current (mA)
Input voltage (V)
Current limit (VIN=4V)
3.5 3 2.5 2 1.5 1 0.5 0
Load fluctuation rate (VIN=4V)
Load fiuctuation rate (mV)
20 10 0 -10 -20 -30 -40 -50 -60
Output voltage (V)
0
50
100
150
200
250
300
0 20 40 60 80 100120140160180200
Output current (mA)
Output current (mA)

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