LM2696MXA/NOPB

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Texas Instruments

3A, CONSTANT ON TIME BUCK REGULATOR

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LM2696MXA/NOPB

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Texas Instruments

3A, CONSTANT ON TIME BUCK REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM2696 Series

The LM2696 is a pulse width modulation (PWM) buck regulator capable of delivering up to 3A into a load. The control loop utilizes a constant on-time control scheme with input voltage feed forward. This provides a topology that has excellent transient response without the need for compensation. The input voltage feed forward ensures that a constant switching frequency is maintained across the entire VINrange.

The LM2696 is capable of switching frequencies in the range of 100 kHz to 500 kHz. Combined with an integrated 130 mΩ high side NMOS switch the LM2696 can utilize small sized external components and provide high efficiency. An internal soft-start and power-good flag are also provided to allow for simple sequencing between multiple regulators.

The LM2696 is available with an adjustable output in an exposed pad HTSSOP-16 package.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2696MXA/NOPB

Current - Output	3 A
Frequency - Switching (Max)	500 kHz
Frequency - Switching (Min)	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Length	0.173 in
Package Name	16-HTSSOP, 16-PowerTSSOP
Package Width	4.4 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	24 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	20 V
Voltage - Output (Min/Fixed)	1.254 V

LM2696 Series

3A, Constant On Time Buck Regulator

Part	Voltage - Input (Max)	Voltage - Output (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Package Length	Package Name	Package Width	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Topology	Output Configuration	Voltage - Input (Min)	Output Type	Number of Outputs	Mounting Type	Current - Output	Function	Frequency - Switching (Max)	Frequency - Switching (Min)	Total Output Count	Non-Isolated Output Count	Supplied Contents	Board Type	Voltage - Output	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Regulator Topology	Contents	Main Purpose	Frequency - Switching	Utilized IC / Part
Texas Instruments LM2696MXAX/NOPB	24 V	20 V	125 °C	-40 °C	0.173 in	16-HTSSOP 16-PowerTSSOP	4.4 mm	No	1.254 V	Buck	Positive	4.5 V	Adjustable	1	Surface Mount	3 A	Step-Down	500 kHz	100 kHz
Texas Instruments LM2696EVAL													Non-Isolated			3 A				1	1 count	Board(s)	Fully Populated	2.5 V	24 VAC	6 V	Buck	Board	DC/DC Step Down	250 kHz	LM2696
Texas Instruments LM2696MXAX/NOPB	24 V	20 V	125 °C	-40 °C	0.173 in	16-HTSSOP 16-PowerTSSOP	4.4 mm	No	1.254 V	Buck	Positive	4.5 V	Adjustable	1	Surface Mount	3 A	Step-Down	500 kHz	100 kHz
Texas Instruments LM2696MXA/NOPB	24 V	20 V	125 °C	-40 °C	0.173 in	16-HTSSOP 16-PowerTSSOP	4.4 mm	No	1.254 V	Buck	Positive	4.5 V	Adjustable	1	Surface Mount	3 A	Step-Down	500 kHz	100 kHz

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LM2696 3A, Constant On Time Buck Regulator datasheet (Rev. B)

AN-1410 LM2696 Demonstration Board (Rev. B)

Control-Mode Quick Reference Guide (Rev. B)