TPS65270PWPR

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Texas Instruments

CONV DC-DC 4.5V TO 18V SYNCHRONOUS STEP DOWN DUAL-OUT 15V 2A 24-PIN HTSSOP EP T/R

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TPS65270PWPR

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Texas Instruments

CONV DC-DC 4.5V TO 18V SYNCHRONOUS STEP DOWN DUAL-OUT 15V 2A 24-PIN HTSSOP EP T/R

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS65270 Series

The TPS65270 is a monolithic, dual synchronous buck regulator with a wide operating input voltage that can operate in 5-V, 9-V, 12-V, or 15-V bus voltages and battery chemistries. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.

The TPS65270 features a precision 0.8-V reference and can produce output voltages up to 15 V. Each converter features an enable pin that allows dedicated control of each channel that provides flexibility for power sequencing. Soft-start time in each channel can be adjusted by choosing different external capacitors. TPS65270 is also able to start up with a prebiased output. The converter begins switching when output voltage reaches the prebiased voltage.

Constant frequency peak current-mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle overcurrent protection and hiccup mode operation limits MOSFET power dissipation in short-circuit or overloading fault conditions. Low-side reverse current protection also prevents excessive sinking current from damaging the converter.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS65270PWPR

Current - Output (Max)	3 A
Current - Output (Min)	2 A
Frequency - Switching (Max)	1.4 MHz
Frequency - Switching (Min)	300 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Length	0.173 in
Package Name	24-PowerTSSOP, 24-HTSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	18 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	15 V
Voltage - Output (Min/Fixed)	0.8 V

TPS65270 Series

Part	Board Type	Total Output Count	Output Type	Non-Isolated Output Count	Supplied Contents	Utilized IC / Part	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Current - Output (Min)	Current - Output (Max)	Contents	Main Purpose	Regulator Topology	Frequency - Switching (Max)	Frequency - Switching (Min)	Voltage - Output	Voltage - Output (Max)	Package Width	Package Name	Package Length	Voltage - Output (Min/Fixed)	Mounting Type	Synchronous Rectifier	Voltage - Input (Min)	Operating Temperature (Max)	Operating Temperature (Min)	Output Configuration	Function	Voltage - Input (Max)	Topology	Number of Outputs	Package / Case
Texas Instruments TPS65270EVM	Fully Populated	2	Non-Isolated	2 count	Board(s)	TPS65270	16 V	4.5 V	2 A	3 A	Board	DC/DC Step Down	Buck	1.4 MHz	300 kHz	1.2 V 1.8 V
Texas Instruments TPS65270PWPR			Adjustable						2 A	3 A				1.4 MHz	300 kHz		15 V	4.4 mm	24-HTSSOP 24-PowerTSSOP	0.173 in	0.8 V	Surface Mount	Yes	4.5 V	85 °C	-40 °C	Positive	Step-Down	18 V	Buck	2
Texas Instruments TPS65270RGER			Adjustable						2 A	3 A				1.4 MHz	300 kHz		15 V	4 mm	24-VQFN	4 mm	0.8 V	Surface Mount	Yes	4.5 V	85 °C	-40 °C	Positive	Step-Down	18 V	Buck	2	24-VFQFN Exposed Pad
Texas Instruments TPS65270RGET			Adjustable						2 A	3 A				1.4 MHz	300 kHz		15 V	4 mm	24-VQFN	4 mm	0.8 V	Surface Mount	Yes	4.5 V	85 °C	-40 °C	Positive	Step-Down	18 V	Buck	2	24-VFQFN Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

TPS65270 Loop Compensation Design Consideration

Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A)

TPS65270 4.5-V to 18-V Input Voltage, 2-A or 3-A Output Current, Dual Synchronous Step-Down Regulator With Integrated MOSFET datasheet (Rev. E)

TPS65270 Buck Converter Evaluation Module User's Guide (Rev. C)

Power Management Guide 2018 (Rev. R)