Specification	TPS40322RHBT

Clock Sync	True
Control Features	Frequency Control, Phase Control, Enable, Current Limit, Soft Start
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	32-VFQFN Exposed Pad
Supplier Device Package	32-VQFN (5x5)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	20 V
Voltage - Supply (Vcc/Vdd) [Min]	3 V

TPS40322 Series

Dual Output or Two-phase Synchronous Buck Controller

Part	Board Type	Frequency - Switching	Supplied Contents	Outputs and Type	Outputs and Type	Voltage - Output	Current - Output	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Regulator Topology	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Type	Supplier Device Package	Frequency - Switching [Max]	Frequency - Switching [Min]	Function	Number of Outputs	Control Features	Package / Case	Output Phases	Topology	Mounting Type	Output Configuration
Texas Instruments TPS40322EVM-679	Fully Populated	500 kHz	Board(s)	2	Non-Isolated	1.2 V 1.8 V	10 A	DC/DC Step Down	15 V	8 V	TPS40322	Buck
Texas Instruments TPS40322EVM-074	Fully Populated	500 kHz	Board(s)	1	Non-Isolated	1.2 V	30 A	DC/DC Step Down	15 V	4.5 V	TPS40322	Buck
Texas Instruments TPS40322RHBR													-40 °C	125 ¯C	3 V	20 V	Transistor Driver	32-VQFN (5x5)	1 MHz	100 kHz	Step-Down	2	Current Limit Enable Frequency Control Phase Control Soft Start	32-VFQFN Exposed Pad	2	Buck	Surface Mount	Positive
Texas Instruments TPS40322RHBT													-40 °C	125 ¯C	3 V	20 V	Transistor Driver	32-VQFN (5x5)	1 MHz	100 kHz	Step-Down	2	Current Limit Enable Frequency Control Phase Control Soft Start	32-VFQFN Exposed Pad	2	Buck	Surface Mount	Positive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.35
		10	$ 3.91
		25	$ 3.70
		100	$ 3.20
	Digi-Reel®	1	$ 4.35
		10	$ 3.91
		25	$ 3.70
		100	$ 3.20
	Tape & Reel (TR)	250	$ 2.14
		500	$ 2.03
Texas Instruments	SMALL T&R	1	$ 3.29
		100	$ 2.88
		250	$ 2.02
		1000	$ 1.63

Description

General part information

TPS40322 Series

The TPS40322 device is a dual-output, synchronous buck controller. It can also be configured as a single-output, two-phase controller. The 180° out-of-phase operation reduces the input current ripple and extends the input capacitor lifetime. Bidirectional master and slave synchronization function provides evenly distributed phase shift for a four-output system that reduces input ripple further and attenuates the system noise.

The wide input range can support 3.3-V, 5-V, and 12-V buses. The accurate reference voltage satisfies the precision voltage needed by ASICs and potentially reduces the output capacitance requirement. Separate PGOOD signals provide flexibility for system monitoring and sequencing. The two channels are independently controlled and each soft-start time is programmable. Voltage mode control is implemented to reduce noise sensitivity and also ensures low duty ratio conversion.

Documents

Technical documentation and resources

TPS40322 Dual Output or Two-Phase Synchronous Buck Controller datasheet (Rev. E)

Data sheet

TPS40322RHBT

Deep-Dive with AI

TPS40322RHBT

Deep-Dive with AI

Technical Specifications

TPS40322 Series

Pricing

Description

TPS40322 Series

Documents

Multiphase Buck Design from Start to Finish, Part 1 (Rev. B)

Using the TPS40322EVM-074

Using the TPS40322EVM-679

Implementing Output Voltage Offset in the TPS40322

Power Management Guide 2018 (Rev. R)

SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC

TPS40322 Dual Output or Two-Phase Synchronous Buck Controller datasheet (Rev. E)