Microminiature Low-Power Consumption Low-Saturation Regulator MM1385 MITSUMI 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 95µA typ. 0.1V typ.(Io=50mA) 70dB typ. 150mA max. 35µVrms 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 5 1 4 2 SOT-25A 3 1 CONT 2 GND 3 NOISE 4 VOUT 5 VIN Microminiature Low-Power Consumption Low-Saturation Regulator MM1385 MITSUMI Block Diagram Absolute Maximum Ratings Item Symbol Ratings Units Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+75 °C Power supply current VCC -0.3~+12 V Output current IOUT 200 mA Power consumption Pd 150 mW Item Symbol Ratings Units Operating temperature Top -20~+75 °C Output current Iop 0~150 mA Operating voltage Vop 1.8~12 V Recomnended Operating Conditions Microminiature Low-Power Consumption Low-Saturation Regulator MM1385 MITSUMI Electrical Characteristics (Except where noted otherwise,Ta=25°C) Item Symbol Measurement conditions Output voltage Vo VIN=Vo+1V, Io=30mA, No-load consumption current Iccq1 VIN=Vo+1V, Io=0mA Input current while off Iccq2 VIN=Vo+1V, VCONT=0V I/O voltage difference Vd min. VIN=Vo-0.2V, Io=50mA Min. Typ. Max. Units VOUT -2% VOUT VOUT +2% V 95 190 µA 0.1 µA 0.1 0.2 V Input fluctuations V1 VIN=Vo+1V~10V, Io=50mA 10 20 mV Load fluctuation V2 VIN=Vo+1V, Io=0~100mA 30 60 mV Output voltage temperature coefficient Vo/ T Tj=-20~+75°C, VIN=Vo+1V, Io=30mA 100 ppm/°C 70 dB µVrms Ripple rejection rate RR VIN=Vo+1V, Io=30mA, VRIPPLE=1VP-P, f=120Hz 50 Output noise voltage Vn VIN=Vo+1V, f=20~80kHz, Io=30mA, Cn=0.01µF 35 (3V item) CONT pin current while on ION VCONT=1.6V 5 10 µA V V CONT pin high level H 1.6 VIN +0.3V CONT pin low level L -0.3 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 Microminiature Low-Power Consumption Low-Saturation Regulator MM1385 MITSUMI Characteristics Ripple rejection rate (VIN=4V, IO=30mA, Vripple=1V, COUT=4.7µF) 2 1.5 1 0.5 0 0 2 4 6 8 10 Ripple rejection rate (Hz) Consuption current (mA) No-load input current 10 100 0 20 40 60 60 40 20 0 0.001 Input fiuctuation (mV) I/O voltage difference (V) 10 0 -10 -20 150 4 5 6 7 8 9 10 11 12 13 14 Load fluctuation rate (VIN=4V) 200 250 Output current (mA) 300 Load fiuctuation rate (mV) Output voltage (V) 20 Input voltage (V) Current limit (VIN=4V) 100 0.1 Noise pin capacitance (µF) Output current (mA) 50 0.01 Input fluctuation (IO=30mA) 0 20 40 60 80 100 120 140 160 180 200 0 1M 80 80 100 120 140 160 I/O voltage difference (VIN=2.8V) 3.5 3 2.5 2 1.5 1 0.5 0 100k 100 Output current (mA) 0.3 0.25 0.2 0.15 0.1 0.05 0 10k Output noise voltage (VIN=4V, IO=30mA, COUT=4.7µF) Output noise voltage (µVrms) 9 8 7 6 5 4 3 2 1 0 1k Frequency (Hz) Input voltage (V) Consuption current (VIN=4V) Consuption current (mA) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 20 10 0 -10 -20 -30 -40 -50 -60 0 20 40 60 80 100120140160180200 Output current (mA)