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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 (TOP VIEW) 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 Q Z X B V C Y I D E F Voltage 5.2V 5.0V 4.9V 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 (Represent data. H rank) No-load input current Consuption current (mA) 2 1.5 1 0.5 0 0 2 4 6 8 10 Ripple rejection rate (VIN=4V, IO=30mA, Vripple=1V, COUT=4.7F) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 Ripple rejection rate (Hz) 10 100 1k 10k 100k 1M Input voltage (V) Frequency (Hz) Consuption current (VIN=4V) 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 Consuption current (mA) 0 20 40 60 80 100 120 140 160 Output current (mA) Noise pin capacitance (F) I/O voltage difference (VIN=2.8V) 0.3 0.25 0.2 0.15 0.1 0.05 0 Input fluctuation (IO=30mA) Input fiuctuation (mV) 20 10 0 I/O voltage difference (V) -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) 20 10 0 -10 -20 -30 -40 -50 -60 Output voltage (V) 0 50 100 150 200 250 300 Load fiuctuation rate (mV) 0 20 40 60 80 100120140160180200 Output current (mA) Output current (mA) ESR Stable region 1000 VIN=0~12V, COUT=4.7uF (Ceramic, ESR=0.02 at 100kHz) Instability Region ESR () 100 10 1 0.1 0.01 Instability Region 0.1 1 10 100 Stable Region IO Output current (mA) |
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