NJM12888F05-TE1

NJM12888 LDO with Reverse Current Protection / Soft Start / Discharge Function GENERAL DESCRIPTION The NJM12888 is a low dropout regulator which achieves high ripple rejection, low noise and high speed response with the bipolar technology. Adjustable soft-start function is useful for reducing inrush current and controlling power-on sequence. Moreover the discharge function makes effective sequence control with the soft-start function. In addition, the reverse current protection makes external SBD unnecessary. ■ PACKAGE OUTLINE NJM12888KG1 NJM12888F FEATURES Operating Voltage Range 2.3V to 6.5V Output Voltage Accuracy VO 1.0% Output Current IO(min.)=300mA Reverse Current Protection Adjustable soft-start Function Discharge Function ON/OFF Control Correspond to Low ESR capacitor (MLCC) Thermal Shutdown Circuit Over Current Protection Circuit Package Outline DFN6-G1(ESON6-G1), SOT-23-5 PIN CONFIGRATION (Top View) Cs 1 (Bottom View) 6 VOUT 6 1 GND 2 5 NC 5 2 CONTROL 3 4 VIN 4 3 VIN 1 GND 2 5 VOUT 4 Cs CONTROL 3 Exposed PAD on backside NJM12888KG1 NJM12888F connected to GND. BLOCK DIAGRAM VIN CONTROL VOUT Reverse Current Protection Thermal Protection CS Bandgap Reference Over Current Protection GND Ver.2015-08-19 -1- NJM12888 OUTPUT VOLTAGE RANK LIST DFN6-G1(ESON6-G1), SOT-23-5 Output Device Name Device Name Voltage NJM12888KG1-15 1.5V NJM12888F15 NJM12888KG1-18 1.8V NJM12888F18 NJM12888KG1-25 2.5V NJM12888F25 NJM12888KG1-33 3.3V NJM12888F33 NJM12888KG1-05 5.0V NJM12888F05 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Pin Voltage VCONT Output Voltage VOUT Soft start Pin Voltage VCS Power Dissipation PD Junction Temperature Range Operating Temperature Range Storage Temperature Range Tj Topr Tstg Output Voltage 1.5V 1.8V 2.5V 3.3V 5.0V (Ta=25 C) MAXIMUM RATING -0.3 ~ +7 -0.3 ~ +7 -0.3 ~ +5.5 Vo 1.8V -0.3 ~ +7 Vo 1.8V -0.3 ~ +4 420(*1) DFN6-G1 (ESON6-G1) 1200(*2) 480(*3) SOT-23-5 650(*4) -40 +150 -40 +125 -50 +150 UNIT V V V V V mW C C C (*1): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 2Layers FR-4, with Exposed Pad) (*2): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 4Layers FR-4, with Exposed Pad) (For 4Layers: Applying 99.5×99.5mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5) (*3): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers) (*4): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm Operating Voltage Range ：VIN=2.3V ~ 6.5V -2- Ver.2015-08-19 NJM12888 ELECTRICAL CHARACTERISTICS Unless other noted, VIN = VO + 1V, CIN = 0.1µF, CO =0.47µF(Co=1.0µF :1.8V Vo 2.6V, Co=2.2µF :Vo 1.8V), Cs=0.01µF, Ta = 25°C PARAMETER Output Voltage Quiescent Current Quiescent Current at OFF-state Output Current Line Regulation Load Regulation Dropout Voltage (*5) Average Temperature Coefficient of Output Voltage SYMBOL VO IQ TEST CONDITION IO=30mA IO = 0mA, except ICONT IQ(OFF) VCONT = 0V IO VO/ VIN VO/ IO VIO VO 0.9 VIN = VO + 1V ~ 6.5V, Io=30mA IO = 0 ~ 300mA IO=100mA VO/ Ta Ta= -40 +125 C, IO=30mA TYP. MAX. UNIT 150 +1.0% 200 V μA - - 10 μA 300 - 0.10 0.10 0.006 0.18 mA %/V %/mA V - ppm/ C - 50 - 71 70 69 66 63 19 23 28 32 42 3 12 VCONT(ON) 1.6 - - V VCONT(OFF) - - 0.6 V 2 15 1.2 9 25 - msec Ripple Rejection RR ein=200mVrms, f=1kHz, Io=10mA Output Noise Voltage VNO f=10Hz ~ 80kHz, Io=10mA Control Current Control Voltage at ON-state Control Voltage at OFF-state Soft Start Time Discharge Current at OFF-state ICONT VCONT =1.6V tS(ON) IDIS Vo=1.5V Vo=1.8V Vo=2.5V Vo=3.3V Vo=5.0V Vo=1.5V Vo=1.8V Vo=2.5V Vo=3.3V Vo=5.0V MIN. -1.0% - VCONT=L→H, Io=30mA, Cs=0.022μF VIN=2.3V, VCONT=0V, VO =0.5V VIN=6.5V, VCONT=0V, VO =0.5V dB μVrms μA mA (*5): Except Output Voltage Rank less than 2.1V The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. Ver.2015-08-19 -3- NJM12888 THERMAL CHARACTERISTICS PARAMETER SYMBOL Junction-to-ambient thermal resistance ja Junction-to-Top of package characterization parameter jt VALUE DFN6-G1 298 (*6) (ESON6-G1) 104 (*7) 260 (*8) SOT-23-5 192 (*9) DFN6-G1 52 (*6) (ESON6-G1) 26 (*7) 70 (*8) SOT-23-5 60 (*9) UNIT C/W C/W (*6): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 2Layers FR-4, with Exposed Pad) (*7): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 4Layers FR-4, with Exposed Pad) (For 4Layers: Applying 99.5×99.5mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5) (*8): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers) (*9): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM12888KG1　PowerDissipation (Topr=-40~+125°C,Tj=150°C) Power Dissipation PD(mW) 2000 1600 on 4 layers board 1200 800 on 2 layers board 400 0 -50 -25 0 25 50 75 100 125 150 Temperature : Ta(°C) NJM12888F　PowerDissipation (Topr=-40~+125°C,Tj=150°C) Power Dissipation P D(mW) 800 on 4 layers board 700 600 500 on 2 layers board 400 300 200 100 0 -50 -25 0 25 50 75 100 125 150 Temperature : Ta(°C) -4- Ver.2015-08-19 NJM12888 TEST CIRCUIT A IIN VIN VIN 0.1μF VOUT (*10) 0.47μF NJM12888 (ceramic) A ICONT IOUT V VOUT (ceramic) Cs CONTROL GND V VCONT 0.01μF (ceramic) *10: 1.8V