Specification	TPS40090QPWRQ1

Clock Sync	True
Control Features	Current Limit, Power Good, Soft Start, Frequency Control, Enable
Duty Cycle (Max) [Max]	87.5 %
Frequency - Switching [Max]	1.2 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	4
Output Type	PWM Signal
Package / Case	24-TSSOP
Package / Case	0.173 in, 4.4 mm
Qualification	AEC-Q100
Supplier Device Package	24-TSSOP
Synchronous Rectifier	False
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	15 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

TPS40090-Q1 Series

Automotive 4.5V to 15V Multiphase Synchronous Buck Controller

Part	Function	Supplier Device Package	Frequency - Switching [Max]	Frequency - Switching [Min]	Control Features	Duty Cycle (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Topology	Output Phases	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Number of Outputs	Output Type	Output Configuration	Package / Case	Package / Case	Utilized IC / Part	Voltage - Output	Voltage - Input [Min]	Voltage - Input [Max]	Board Type	Current - Output	Outputs and Type	Outputs and Type	Main Purpose	Regulator Topology	Supplied Contents	Grade	Qualification
Texas Instruments TPS40090PWR	Step-Down	24-TSSOP	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	85 °C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	24-TSSOP	0.173 in 4.4 mm
Texas Instruments TPS40090RHDR	Step-Down	28-VQFN (5x5)	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	85 °C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	28-VFQFN Exposed Pad
Texas Instruments TPS40090RHDT	Step-Down	28-VQFN (5x5)	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	85 °C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	28-VFQFN Exposed Pad
Texas Instruments TPS40090PWG4	Step-Down	24-TSSOP	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	85 °C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	24-TSSOP	0.173 in 4.4 mm
Texas Instruments TPS40090EVM-001																			TPS40090	1.5 V	10.5 V	14.5 V	Fully Populated	100 A	Non-Isolated	1	DC/DC Step Down	Buck	Board(s)
Texas Instruments TPS40090PW	Step-Down	24-TSSOP	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	85 °C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	24-TSSOP	0.173 in 4.4 mm
Texas Instruments TPS40090QPWRQ1	Step-Down	24-TSSOP	1.2 MHz	100 kHz	Current Limit Enable Frequency Control Power Good Soft Start	87.5 %	125 ¯C	-40 °C	Surface Mount	Buck	4	15 V	4.5 V	4	PWM Signal	Positive	24-TSSOP	0.173 in 4.4 mm												Automotive	AEC-Q100

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	$ 5.28
		10	$ 4.74
		25	$ 4.48
		100	$ 3.89
		250	$ 3.69
		500	$ 3.31
		1000	$ 2.79
	Digi-Reel®	1	$ 5.28
		10	$ 4.74
		25	$ 4.48
		100	$ 3.89
		250	$ 3.69
		500	$ 3.31
		1000	$ 2.79
	Tape & Reel (TR)	2000	$ 2.47
Texas Instruments	LARGE T&R	1	$ 4.58
		100	$ 4.02
		250	$ 2.82
		1000	$ 2.27

Description

General part information

TPS40090-Q1 Series

The TPS40090 is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a 5-V to 15-V distributed supply. A multi-phase converter offers several advantages over a single power stage including lower current ripple on the input and output capacitors, faster transient response to load steps, improved power handling capabilities, and higher system efficiency.

Each phase can be operated at a switching frequency up to 1-MHz, resulting in an effective ripple frequency of up to 4-MHz at the input and the output in a four-phase application. A two-phase design operates 180° out of phase, a three-phase design operates 120° out of phase, and a four-phase design operates 90° out of phase, as shown in Figure 1.

The number of phases is programmed by connecting the deactivated phase PWM output to the output of the internal 5-V LDO. In two-phase operation the even phase outputs should be deactivated.

Documents

Technical documentation and resources

High-Frequency Multiphase Controller. datasheet (Rev. C)

Data sheet