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NJW4153 Dataheets PDF



Part Number NJW4153
Manufacturers New Japan Radio
Logo New Japan Radio
Description Switching Regulator IC
Datasheet NJW4153 DatasheetNJW4153 Datasheet (PDF)

NJW4153 Switching Regulator IC for Buck Converter Current Mode Control w/ 40V/1A MOSFET GENERAL DESCRIPTION The NJW4153 is a buck converter with 40V/1A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.6V to 40V. Therefore, the NJW4153 can realize downsizing of applications with a few external parts so that adopts current mode control. Also, it has a soft start function, an over current protection and a thermal shutdown cir.

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NJW4153 Switching Regulator IC for Buck Converter Current Mode Control w/ 40V/1A MOSFET GENERAL DESCRIPTION The NJW4153 is a buck converter with 40V/1A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.6V to 40V. Therefore, the NJW4153 can realize downsizing of applications with a few external parts so that adopts current mode control. Also, it has a soft start function, an over current protection and a thermal shutdown circuit. It is suitable for power supply circuit of Micro Processor, DSP and so on that need fast transient response. FEATURES Current mode Control Maximum Rating Input Voltage 45V Wide Operating Voltage Range 4.6V to 40V Switching Current 1.4A min. PWM Control Built-in Compensation Circuit Correspond to Ceramic Capacitor (MLCC) Oscillating Frequency 1MHz typ. (A ver.) Soft Start Function 4ms typ. UVLO (Under Voltage Lockout) Over Current Protection (Hiccup type) Thermal Shutdown Protection Standby Function Package Outline NJW4153U2 : SOT-89-5 NJW4153KV1 : ESON8-V1 ■ PACKAGE OUTLINE NJW4153U2 NJW4153KV1 PRODUCT CLASSIFICATION Part Number Version NJW4153U2-A NJW4153KV1-A A A Oscillation Frequency 1MHz typ. 1MHz typ. Package SOT-89-5 ESON8-V1 Operating Temperature Range General Spec. -40°C to +85°C General Spec. -40°C to +85°C Ver.2013-03-21 -1- NJW4153 PIN CONFIGURATION 5 (2) 4 123 NJW4153U2 PIN FUNCTION 1. ON/OFF 2. GND 3. IN4. SW 5. V+ 1 2 3 4 (Top View) PIN FUNCTION 88 1 1. SW 77 66 55 2 2. N.C. 3 3. V+ 4 4. N.C. 5. ON/OFF Exposed PAD on backside 6. GND connect to GND. 7. N.C. (Bottom View) 8. IN- NJW4153KV1 BLOCK DIAGRAM ON/OFF High: ON Low : OFF (Standby) 450kΩ IN- Standby ON/OFF UVLO Low Frequency Control SLOPE COMP. OSC Soft Start Vref 0.8V ER⋅AMP V+ CURRENT SENSE OCP SQ R Buf f er PWM TSD GND SW -2- Ver.2013-03-21 NJW4153 ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage V+- SW pin Voltage SYMBOL V+ VV-SW MAXIMUM RATINGS +45 +45 UNIT V V IN- pin Voltage VIN- -0.3 to +6 V ON/OFF pin Voltage VON/OFF +45 V SOT-89-5 625 (*1) 2,400 (*2) Power Dissipation PD ESON8-V1 600 (*3) mW 1,800 (*4) Junction Temperature Range Tj -40 to +150 °C Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -40 to +150 °C (*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm2) (*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers) (For 4Layers: Applying 74.2×74.2mm inner Cu area and a thermal via hall to a board based on JEDEC standard JESD51-5) (*3): Mounted on glass epoxy board. (101.5×114.5×1.6mm: based on EIA/JEDEC standard, 2Layers FR-4, with Exposed Pad) (*4): 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) RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage SYMBOL MIN. TYP. MAX. UNIT V+ 4.6 – 40 V Ver.2013-03-21 -3- NJW4153 ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL (Unless otherwise noted, V+=VON/OFF=12V, Ta=25°C) TEST CONDITION MIN. TYP. MAX. UNIT Under Voltage Lockout Block ON Threshold Voltage OFF Threshold Voltage Hysteresis Voltage VT_ON VT_OFF VHYS V+= L → H V+= H → L Soft Start Block Soft Start Time TSS VB=0.75V Oscillator Block Oscillation Frequency Oscillation Frequency (Low Frequency Control) Oscillation Frequency deviation (Supply voltage) Oscillation Frequency deviation (Temperature) fOSC fOSC_LOW fDV fDT A version, VIN-=0.7V VIN-=0.4V V+=4.6 to 40V Ta= -40°C to +85°C Error Amplifier Block Reference Voltage Input Bias Current VB IB PWM Comparate Block Maximum Duty Cycle Minimum ON time MAXDUTY tON-min VIN-=0.7V Over Current Protection Block Cool Down Time tCOOL Output Block Output ON Resistance Switching Current Limit SW Leak Current RON ILIM ILEAK ISW=1A VON/OFF=0V, V+=45V, VSW=0V ON/OFF Block ON Control Voltage OFF Control Voltage Pull-down Resistance VON VOFF RPD VON/OFF= L → H VON/OFF= H → L General Characteristics Quiescent Current Standby Current IDD IDD_STB RL=no load, VIN-=0.7V VON/OFF=0V 4.3 4.45 4.6 V 4.2 4.35 4.5 V 70 100 – mV 2 4 8 ms 900 1,000 1,100 kHz – 370 – kHz – 1 –% – 5 –% -1.0% 0.8 +1.0% V -0.1 – +0.1 µA 85 90 – % – 140 180 ns – 8 – ms – 0.45 0.75 Ω 1.4 1.9 2.4 A – – 1 µA 1.6 – V+ V 0 – 0.5 V – 450 – kΩ – 3.9 4.4 mA – – 1 µA -4- Ver.2013-03-21 NJW4153 TYPICAL APPLICATIONS VIN CIN V+ SW NJW4153 ON/OFF GND IN- ON/OFF High: ON Low: OFF (Standby) L SBD CFB COUT V OUT R2 R1 Ver.2013-03-21 -5- NJW4153 ■TYPICAL CHARACTERISTICS Oscillation Frequency vs. Supply Voltage 1020 (A ver., VIN-=0.7V, Ta=25°C) Oscillation Frequnecny fOSC (kHz) 1010 1000 990 Quiescent Current IDD (mA) 980 0 10 20 30 Supply Voltage V+ (V) 40 Quies.


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