NJW4153 Series

Switching Regulator IC for Buck Converter Current Mode Control with 40V/1A MOSFET

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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.

Spec

	Consumer	Automotive
Input Voltage Range	4.6 V to 40 V (45 V)
Operating Temperature Range	-40°C to 85°C	-40°C to 125°C
Supply Current	Typ. 3900 µA	Max. 4400 µA
Standby Current	1 (max.) µA
Output Voltage Range	0.8 V to 34 V
Output Voltage Accuracy	± 1 %	± 2 %
Output Current	1000 mA
Oscillator Frequency	1MHz typ.(A ver.)
Package	SOT-89-5-2 DFN8-V1(ESON8-V1)	SOT-89-5-2
Control	Current mode Control / PWM Control
Function	Standby Function Soft Start Function (4ms typ.) Over Current Protection (Hiccup type) Thermal Shutdown Protection
Note	Built-in Compensation Circuit UVLO (Under Voltage Lockout) Correspond to Ceramic Capacitor (MLCC)	If you need datasheets of this product, please contact us.

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TSD	ILX	OCP	OVP	UVLO	OVLO	Reverse	Shutdown	Soft Start	SSCG	PGOOD	Auto Discharge	Anti-ringing	Sequencing	Max Duty	Ext. Phase	LED Adjust

Functional Description

Quality &
Packages

Product Name	Package	Marking	Reliability
NJW4153U2	SOT-89-5-2	-	NJW-1-s-fr
NJW4153KV1	DFN8-V1(ESON8-V1)	-	NJW-1-s-r
NJW4153U2-A-T1	SOT-89-5-2	-	NJW-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

TSD	Thermal Shutdown Function
ILX	LX Current Limit Function
OCP	Overcurrent Protection
OVP	Overvoltage Protection
UVLO	Undervoltage Lockout Protection
OVLO	Overvoltage Lockout Protection
Reverse	Reverse Current Protection Circuit
Shutdown	Shutdown Function
Soft Start	Soft Start Function
SSCG	Spread Spectrum Clock Generator Function
PGOOD	Power Good Output
Auto Discharge	Auto Discharge Function
Anti-ringing	Anti-ringing Switch Function
Sequencing	Start-up Sequencing Control
Max Duty	Maximum Duty Cycle
Ext. Phase	Externally Adjustable Phase Compensation
LED Adjust	LED High-speed Dimming Control