NJM2370 LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJM2370 is a low dropout voltage regulator with ON/OFF control. It features dropout voltage of 0.1V at Io=30mA, low NJM2370U output noise and high ripple rejection by connecting an external capaciter to noise bypass terminal. It’s suitable for portable items such as cellular phones, video camera and others. NJM2370R ■ FEATURES ● Output Current (150mA min. (Vo-0.3V)) ● Low Dropout Voltage (0.1V typ. (Io=30mA)) ● External Capaciter for Noise Bypass ● ON/OFF Control Function ● Over Current Limit ● Thermal Shutdown ● Bipolar Technology ● Package Outline SOT-89(5pin), VSP8 ■ PIN CONFIGURATION 5 4 PIN FUNCTION CONTROL GND NOISE BYPASS VOUT VIN 1. 2. 3. 4. 5. 1 2 3 NJM2370U 1 8 2 7 3 6 4 5 NJM2370R PIN FUNCTION 1. CONTROL 2. GND 3. NC 4. NOISE BYPASS 5. VOUT 6. NC 7. NC 8. VIN ■ EQUIVALENT CIRCUIT VOUT VIN CONT Thermal Protection NOISE BYPASS Bandgap Reference GND - 1/1 NJM2370_databook00_01 NJM2370 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT (Ta=25°C) RATINGS UNIT 20 V 20(note 1) V (SOT-89) 350 Power Dissipation PD mW (VSP8) 320 Operating Temperature Range Topr −40 ∼ +85 °C Storage Temperature Range Tstg −40 ∼ +125 °C (note 1)When input voltage is less than +20V, the absolute maximum control voltage is equal to the input voltage. ■ ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Output Voltage Vo Quiescent Current 1 IQ1 Quiescent Current 2 IQ2 Output Current Io Line Regulation ∆Vo/∆VIN Load Regulation Dropout Voltage Ripple Rejection ∆Vo/∆Io ∆VI-O R•R Average Temperature Coefficient of Output Voltage Output Noise Voltage ∆Vo/∆Ta CONDITIONS VIN=Vo+1V, Io=30mA Io=0mA,expect ICONT CONTROL−GND short (Vo−0.3V) VIN=(Vo+1V) ∼ (Vo+6V) Vo=2V to 14V VIN=(Vo+1V) ∼ (Vo+5V) Vo=15V Io=0 ∼ 60mA Io=30mA f=400Hz, ein=100mVp-p VIN=Vo+1.5V, Io=10mA Ta=−20 ∼ 75°C, Io=10mA VIN=Vo+1.5V (Ta=25°C) MAX. UNIT +3% V µA − 100 nA mA − 0.12 %/V MIN. −3% − − 150 − TYP. − 180 − 180 − − − 0.12 %/V − − − − 0.1 %/mA V 60 0.03 0.3 − − 0. 2 − mV/°C dB 30 µVrms − − (note 2)Please confirm the specification separately because some parameters depend on output voltage. VNO 10Hz< f < 80kHz, Io=10mA, Vo=3V ■ TEST CIRCUIT A IIN VIN VOUT + VIN 0.1µF A V VCONT ICONT + ＮＪＭ2370 CONTROL GND IOUT V VOUT 10µF NOISE BYPASS Cp - 2/2 NJM2370_databook00_01 NJM2370 ■ TYPICAL APPLICATION ① In Nonuse of ON/OFF Control VIN VIN + VOUT VOUT + 0.1µF ＮＪＭ2370 R (0～300kΩ) CONTROL 10µF NOISE BYPASS Cp=0.1µF GND 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 VIN VIN VOUT + VOUT + ＮＪＭ2370 0.1µF 10µF R CONTROL GND NOISE BYPASS Cp=0.1µF 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. - 3/3 NJM2370_databook00_01 NJM2370 ■ PACKAGE MARKING ➅ 701 ➁ 4 05A ➂ 5 2 7 6 A ➂ 0 ➀ 7 ➃ J 5 ➁ 0 1 ➄ ➅ R C 1 2 3 ➄ ➀ 1 8 ➃ 3 5 4 ➀, ➁ Output voltage rank ➂ ➃ (Please refer to output voltage rank list) Plant code.(NJM2370 is ”A”) Last digit of the calendar year ➄, ➅ Lot Number ■ OUTPUT VOLTAGE RANK LIST Output Part Number Voltage 2.0V NJM2370X02 2.1V NJM2370X21 2.2V NJM2370X22 2.3V NJM2370X23 2.4V NJM2370X24 2.5V NJM2370X25 2.6V NJM2370X26 2.7V NJM2370X27 2.8V NJM2370X28 2.9V NJM2370X29 3.0V NJM2370X03 3.1V NJM2370X31 3.2V NJM2370X32 3.3V NJM2370X33 3.5V NJM2370X35 (✱1):SOT-89(5pin) ONLY (✱2):VSP8 ONLY Marking ➀ ➁ 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 (✱1) (✱1) (✱1) (✱1) (✱1) (✱1) (✱1) (✱1) Output Voltage 3.6V 3.7V 3.8V 3.9V 4.0V 4.7V 5.0V 6.0V 8.0V 9.0V 10.0V 12.0V 13.0V 15.0V Marking Part Number ➀ ➁ NJM2370X36 NJM2370X37 NJM2370X38 NJM2370X39 NJM2370X04 NJM2370X47 NJM2370X05 NJM2370X06 NJM2370X08 NJM2370X09 NJM2370X10 NJM2370X12 NJM2370X13 NJM2370X15 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) ■ POWER DISSIPATION VS. AMBIENT TEMPERATURE 400 SO T-89(5pin) Power Dissipation P D (mW) 350 300 VSP8 250 200 150 100 50 0 0 25 50 75 100 A m bient Tem perature Ta(°C) - 4/4 NJM2370_databook00_01 MEMO [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.