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| NJM2370 LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL GENERAL DESCRIPTION The NJM2370 is a low dropout voltage regulator with ON/OFF control. It features dropout voltage of 0.1V at IO=30mA, low output noise and high ripple rejection by connecting an external capacitor to noise bypass terminal. It's suitable for portable items such as cellular phones, video camera and others. PACKAGE OUTLINE NJM2730U NJM2730R FEATURES Output Current (150mA min. (VO-0.3V)) Low Dropout Voltage (0.1V typ. (IO=30mA)) External Capacitor for Noise Bypass ON / OFF Control Function Over Current Limit Thermal Shutdown Bipolar Technology Package Outline SOT-89 (5pin), VSP8 PIN CONFIGURATION PIN FUNCTION 1. CONTROL 2. GND 3. NOISE BYPASS 4. VOUT 5. VIN NJM2730U NJM2730R PIN FUNCTION 1. CONTROL 2. GND 3. NC 4. NOISE BYPASS 5. VOUT 6. NC 7. NC 8. VIN EQUIVALENT CIRCUIT Ver.2003-07-18 -1- NJM2370 ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage Control Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL VIN VCONT PD Topr Tstg RATINGS 20 20 (note 1) (SOT-89) (VSP8) 350 320 (Ta=25C) UNIT V V mW C C -40 to +85 -40 to +125 (note 1) When input voltage is less than +20V, the absolute maximum control voltage is equal to the input voltage. ELECTRICAL CHARACTERISTICS PARAMETER Output Voltage Quiescent Current 1 Quiescent Current 2 Output Current Line Regulation SYMBOL VO IQ1 IQ2 IO VO / VIN CONDITIONS VIN=VO+1V, IO=30mA IO=0mA, expect ICONT CONTROL-GND short (VO-0.3V) VIN=(VO+1V) to (VO+6V) VO=2V to 14V VIN=(VO+1V) to (VO+5V) VO=15V Load Regulation Dropout Voltage Ripple Rejection Average Temperature Coefficient of Output Voltage Output Noise Voltage VO / IO VI-O R*R VO / Ta VNO IO=0 to 60mA IO=30mA f=400Hz, ein=100mVP-P VIN= VO+1.5V, IO=10mA Ta=-20 to 75C, IO=10mA VIN=VO+1.5V 10Hz < f < 80kHz, IO=10mA, VO=3V MIN. -3% 150 TYP. 180 180 0.1 60 0.2 30 MAX. +3% 100 0.12 0.12 0.03 0.3 - (Ta=25C) UNIT V A nA mA %/V %/V % / mA V dB mV / C Vrms (note 2) Please confirm the specification separately because some parameters depend on output voltage. TEST CIRCUIT -2- Ver.2003-07-18 NJM2370 TYPICAL APPLICATION 1 In Nonuse of ON / OFF Control Connect control terminal (1Pin) to VIN terminal (5Pin) When a resistance "R" is connected, the quiescent current decreases, but minimum operating voltage increases. Please refer to a figure of Output Voltage vs. Control Voltage. 2 In Use of ON / OFF CONTROL When the control terminal is "H", it is ON. When the control terminal is "L" or "open", it is OFF. *Noise bypass Capacitance Cp Noise bypass capacitance CP reduces noise generated by band-gap reference circuit. Noise level and ripple rejection will be improved when larger CP is used. Please refer to the typical characteristics to determine the value. Use of smaller CP value may induce oscillation. Please make sure to use CP value of greater than 0.1uF to avoid the problem. Ver.2003-07-18 -3- NJM2370 PACKAGE MARKING 12 , Output voltage rank (Please refer to output voltage rank list) 3 Plant code. (NJM2370 is "A") 4 Last digit of the calendar year 56 , Lot Number OUTPUT VOLTAGE RANK LIST Output Voltage 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V Part Number NJM2370X02 NJM2370X21 NJM2370X22 NJM2370X23 NJM2370X24 NJM2370X25 NJM2370X26 NJM2370X27 NJM2370X28 NJM2370X29 NJM2370X03 NJM2370X31 NJM2370X32 NJM2370X33 Marking 1 2 Output Voltage 3.6V (*1) (*1) (*1) (*1) (*1) (*1) (*1) 3.7V 3.8V 3.9V 4.0V 4.7V 5.0V 6.0V 8.0V 9.0V 10.0V 12.0V (*1) 13.0V 15.0V Part Number NJM2370X36 NJM2370X37 NJM2370X38 NJM2370X39 NJM2370X04 NJM2370X47 NJM2370X05 NJM2370X06 NJM2370X08 NJM2370X09 NJM2370X10 NJM2370X12 NJM2370X13 NJM2370X15 Marking 1 2 0 2 2 2 2 2 2 2 2 2 0 3 3 3 3 2 1 2 3 4 5 6 7 8 9 3 1 2 3 5 3 3 3 3 0 4 0 0 0 0 1 1 1 1 6 7 8 9 4 7 5 6 8 9 0 2 3 5 (*1) (*1) (*1) (*1) (*1) (*2) 3.5V NJM2370X35 (*1) : SOT-89 (5pin) ONLY (*2) : VSP8 ONLY POWER DISSIPATION VS. AMBIENT TEMPERATURE -4- Ver.2003-07-18 NJM2370 TYPICAL CHARACTERISTICS NJM2370U03 / R03 Dropout Voltage NJM2370U03 / R03 Load Regulation NJM2370U03/R03 GND Current vs. Output Current NJM2370U03/R03 Dropout Voltage vs. Output Current Ver.2003-07-18 -5- NJM2370 TYPICAL CHARACTERISTICS NJM2370U03 / R03 Control Current vs. Control Voltage NJM2370U03 / R03 Output Voltage vs. Control Voltage NJM2370U03/R03 Output Noise Voltage vs. Noise Bypass Capacitor NJM2370U03/R03 Ripple Rejection vs. Frequency -6- Ver.2003-07-18 NJM2370 TYPICAL CHARACTERISTICS NJM2370U03 / R03 Control Current vs. Ambient Temperature Dropout Voltage vs. Ambient Temperature On Control Voltage vs. Temperature NJM2370U03 / R03 Quiescent Current 1 vs. Ambient Temperature Thermal Shutdown [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.2003-07-18 -7- |
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