LM3495MTC datasheet(1/26 Pages) NSC

部件名	LM3495MTC

功能描述	Emulated Peak Current Mode Buck Controller for Low Output Voltage

PDF	26 Pages

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制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

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LM3495

Emulated Peak Current Mode Buck Controller for Low

Output Voltage

General Description

The LM3495 is a PWM buck regulator which implements a

unique emulated peak current mode control. This control

method eliminates the switching noise which typically limits

current mode operation at extremely short duty cycles and

high operating frequency. The switching frequency is pro-

grammable between 200 kHz and 1.5 MHz, and can also be

synchronized to an external clock. The LM3495 is also very

fault tolerant with both switch node short, hiccup mode, and

adaptive duty cycle limit protection. A 0.6V 1% reference and

glitch free pre-biased start-up ensure the most demanding

digital loads operate reliably. Internal soft start and the ability

to track the output of another supply make the LM3495

versatile and efficient.

Features

n

Input voltage from 2.9V to 18V

n

Output voltage adjustable from 0.6V to 5.5V

n

Feedback Accuracy: ±1%

n

Low-side Sensing, Programmable Current Limit without

sense resistor

n

Input Under Voltage Lockout

n

Hiccup mode current limit protection eliminates thermal

runaway during fault conditions

n

Internal soft start with tracking capability

n

200 kHz to 1.5 MHz Switching frequency,

Synchronizable

n

On-chip gate drivers

n

Soft output discharge during shutdown

n

Startup into output pre-bias

n

Operation from a single input rail

n

Adaptive Duty Cycle Limit

n

TSSOP-16 package

Applications

n

Wide input voltage buck converters with low voltage,

high accuracy outputs

n

Core logic regulators

n

High-efficiency buck regulation

Typical Application

20169901

April 2006

DS201699

www.national.com

类似零件编号 - LM3495MTC

制造商	部件名	数据表	功能描述
Texas Instruments	LM3495MTC/NOPB	1Mb / 36P	Emulated Peak Current Mode Buck Controller for Low Output Voltage
	LM3495MTC/NOPB	943Kb / 39P	LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage REVISED APRIL 2013
	LM3495MTC/NOPB.A	943Kb / 39P	LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage REVISED APRIL 2013
	LM3495MTCX	1Mb / 36P	Emulated Peak Current Mode Buck Controller for Low Output Voltage
	LM3495MTCX/NOPB	1Mb / 36P	Emulated Peak Current Mode Buck Controller for Low Output Voltage

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类似说明 - LM3495MTC

制造商	部件名	数据表	功能描述
Renesas Technology Corp	R2J20701NP	223Kb / 28P	Peak Current Mode Synchronous Buck Controller with Power MOSFETs
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National Semiconductor ...	LM3000	815Kb / 26P	Dual Synchronous Emulated Current-Mode Controller
Renesas Technology Corp	R2J20751NP	197Kb / 26P	Peak Current Mode Synchronous Buck Controller with Power MOS FETs
Renesas Technology Corp	R2J20702NP	190Kb / 28P	Peak Current Mode Synchronous Buck Controller with Power MOS FETs
Texas Instruments	LM5116	1Mb / 37P	Emulated Peak Current Mode, Wide Operating Range Up to 100V
	LM3000	1Mb / 41P	Dual Synchronous Emulated Current-Mode Controller
	LM3495	1Mb / 35P	Emulated Peak Current Mode Buck Controller for Low Output Voltage
	LM3495	1Mb / 36P	Emulated Peak Current Mode Buck Controller for Low Output Voltage
	LM3000	1Mb / 41P	Dual Synchronous Emulated Current-Mode Controller