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TPS65321EVM

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Texas Instruments

EVALUATION MODULE

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Development Boards, Kits, Programmers

TPS65321EVM

Active

Texas Instruments

EVALUATION MODULE

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TPS65321EVM

Board Type	Fully Populated
Contents	Board(s)
Current - Output	280 mA, 3.2 A
Main Purpose	DC/DC, Step Down with LDO
Outputs and Type	2
Outputs and Type	Non-Isolated, 2 Non-Isolated Outputs
Regulator Topology	Buck
Supplied Contents	Board(s)
Utilized IC / Part	TPS65321-Q1
Voltage - Input [Max]	36 V
Voltage - Input [Min]	3.6 V
Voltage - Output	3.3 V, 5 V

TPS65321 Series

Automotive 3.6V to 36V, 3.2A Buck Converter with Wide Vin 280mA LDO Regulator

Part	Outputs and Type	Outputs and Type	Board Type	Supplied Contents	Voltage - Output	Main Purpose	Utilized IC / Part	Contents	Regulator Topology	Voltage - Input [Max]	Voltage - Input [Min]	Current - Output	Voltage/Current - Output 1 [Min]	Voltage/Current - Output 1 [Max]	Voltage/Current - Output 1	Qualification	Voltage - Supply [Max]	Voltage - Supply [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Topology	Package / Case	Grade	Mounting Type	Voltage/Current - Output 2	Voltage/Current - Output 2 [Min]	Voltage/Current - Output 2 [Max]	Number of Outputs	Frequency - Switching [Min]	Frequency - Switching [Max]
Texas Instruments TPS65321EVM	2	2 Non-Isolated Outputs Non-Isolated	Fully Populated	Board(s)	3.3 V 5 V	DC/DC Step Down with LDO	TPS65321-Q1	Board(s)	Buck	36 V	3.6 V	3.2 A 280 mA
Texas Instruments TPS65321QPWPRQ1													1.1 V	20 V	3.2 A	AEC-Q100	36 V	3 V	125 °C	-40 C	14-HTSSOP	Linear (LDO) (1) Step-Down (Buck) (1)	14-PowerTSSOP (0.173" 4.40mm Width)	Automotive	Surface Mount	280 mA	1.1 V	5.5 V	2	100 kHz	2.5 MHz
Texas Instruments TPS65321AQPWPRQ1													1.1 V	20 V	3.2 A	AEC-Q100	36 V	3 V	125 °C	-40 °C	14-HTSSOP	Linear (LDO) (1) Step-Down (Buck) (1)	14-PowerTSSOP (0.173" 4.40mm Width)	Automotive	Surface Mount	280 mA	1.1 V	5.5 V	2	100 kHz	2.5 MHz

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 58.80
	N/A	8	$ 58.80

Description

General part information

TPS65321 Series

The TPS65321A-Q1 device is a combination of a high-VIN DC-DC step-down converter, referred to as the buck regulator, with an adjustable switch-mode frequency from 100-kHz to 2.5-MHz, and a high-VIN 280-mA low-dropout (LDO) regulator. The input range is 3.6 V to 36 V for the buck regulator, and 3 V to36 V for the LDO regulator. The buck regulator has an integrated high-side MOSFET with an active-low, open-drain power-good output-pin (nRST). The LDO regulator features a low-input supply current of 45-µA typical in no-load, also has an integrated MOSFET. Low-voltage tracking feature enables TPS65321A-Q1 to track the input supply during cold-crank conditions.

The buck regulator provides a flexible design to fit system needs. The external loop compensation circuit allows for optimization of the converter response for the appropriate operating conditions. A low-ripple pulse-skip mode reduces the no-load input-supply current to maximum 140 µA.

The device has built-in protection features such as soft start, current-limit, thermal sensing and shutdown due to excessive power dissipation. Furthermore, the device has an internal undervoltage-lockout (UVLO) function that turns off the device when the supply voltage is too low.

Documents

Technical documentation and resources