NCV4279A: Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output

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NCV4279A: Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output

The NCV4279A is a 5.0 V precision micropower voltage regulator with an output current capability of 150 mA. The output voltage is accurate within ±2.0% with a maximum dropout voltage of 0.5 V at 100 mA. Low quiescent current is a feature drawing only 150 µA with a 1.0 mA load. This part is ideal for any and all battery operated microprocessor equipment. Microprocessor control logic includes an active reset output RO with delay and a SI/SO monitor which can be used to provide an early warning signal to the microprocessor of a potential impending reset signal. The use of the SI/SO monitor allows the microprocessor to finish any signal processing before the reset shuts the microprocessor down. The active Reset circuit operates correctly at an output voltage as low as 1.0 V. The Reset function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits. The reset threshold voltage can be decreased by the connection of an external resistor divider to the RADJ lead. The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments. The device has also been optimized for EMC conditions. If the application requires pullup resistors at the logic outputs Reset and Sense Out, the NCV4269A with integrated resistors can be used.

应用功能框图

NCV4279A 应用功能框图

特性

5.0 V ±2.0% Output with 150 mA output current capability
Active Reset Output Low Down to VQ=1.0V; Adjustable Reset Threshold
Fault Protection: -40V Reverse Voltage Protection Short Circuit Protection Thermal overload protection
Early Warning through SI/SO Leads, adjustable threshold via external resistor
AEC Q100 Qualified
Very Low Dropout Voltage

优势

Tight regulation limits
Microprocessor power management feature, design flexibility
No external components required to enable protections required within any automotive applications.
Microprocessor power management feature: warns microprocessor of impending reset event or can also be used as a general purpose comparator.
Meets automotive quality requirements

应用

Body and Chassis Powertrain Infotainment

终端产品

Automotive

仿真模型 (1)

Document Title	Document ID/Size	Revision	Revision Date
NCV4279A PSPICE MODEL	NCV4279A PSPICE MODEL (43kB)	1

数据表 (1)

Document Title	Document ID/Size	Revision	Revision Date
Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output	NCV4279A/D (156.0kB)	4

产品订购型号

产品	状况	Compliance	具体说明	封装		MSL*	容器		预算价格 (1千个数量的单价）
NCV4279A50D1G	Last Shipments	AEC Qualified PPAP Capable Pb-free Halide free	Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output, 5.0 V	SOIC-8	751-07	1	Tube	98
NCV4279A50D1R2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output, 5.0 V	SOIC-8	751-07	1	Tape and Reel	2500	$0.42
NCV4279A50D2G	Last Shipments	AEC Qualified PPAP Capable Pb-free Halide free	Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output, 5.0 V	SOIC-14	751A-03	1	Tube	55
NCV4279A50D2R2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	Linear Voltage Regulator, LDO, 150 mA, with Delay, Adjustable Reset and Sense Output, 5.0 V	SOIC-14	751A-03	1	Tape and Reel	2500	$0.6027