TPS40002

Name: TPS40002
Brand: TI
SKU: TPS40002
Price: 0.921 USD

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Synchroner Abwärtsregler (Buck), niedrige Eingangsspannung (2,25−5,5 V), 600 kHz Frequenz, nur Quell

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Datenblatt

document-pdfAcrobat TPS40000 Synchronous Buck Controller datasheet (Rev. D) (Englisch)

TPS40002

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Datenblatt

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Produktdetails

Vin (min) (V)

2.25

Vin (max) (V)

5.5

Iout (max) (A)

15

Operating temperature range (°C)

-40 to 85

Control mode

Voltage mode

Rating

Catalog

Vout (min) (V)

0.7

Vout (max) (V)

4

Iq (typ) (A)

0.0015

Duty cycle (max) (%)

93

Vin (min) (V)

2.25

Vin (max) (V)

5.5

Iout (max) (A)

15

Operating temperature range (°C)

-40 to 85

Control mode

Voltage mode

Rating

Catalog

Vout (min) (V)

0.7

Vout (max) (V)

4

Iq (typ) (A)

0.0015

Duty cycle (max) (%)

93

HVSSOP (DGQ)

10

14.7 mm² 3 x 4.9

Operating Input Voltage 2.25 V to 5.5 V
Output Voltage as Low as 0.7 V
1% Internal 0.7 V Reference
Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
Externally Adjustable Soft-Start and Overcurrent Limit
Source-Only Current or Source/Sink Current
Versions for Starting into V_OUT Pre-Bias
10-Lead MSOP PowerPad™ Package for Higher Performance
Thermal Shutdown
Internal Boostrap Diode
Fixed-Frequency, Voltage-Mode Control
- TPS40000/1/4 300-kHz
- TPS40002/3/5 600-kHz
APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules

PowerPAD™ and Predictive Gate Drive™ are trademarks of Texas Instruments Incorporated.

Operating Input Voltage 2.25 V to 5.5 V
Output Voltage as Low as 0.7 V
1% Internal 0.7 V Reference
Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
Externally Adjustable Soft-Start and Overcurrent Limit
Source-Only Current or Source/Sink Current
Versions for Starting into V_OUT Pre-Bias
10-Lead MSOP PowerPad™ Package for Higher Performance
Thermal Shutdown
Internal Boostrap Diode
Fixed-Frequency, Voltage-Mode Control
- TPS40000/1/4 300-kHz
- TPS40002/3/5 600-kHz
APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules

PowerPAD™ and Predictive Gate Drive™ are trademarks of Texas Instruments Incorporated.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

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Alle anzeigen 14

	Typ	Titel	Datum
*	Data sheet	TPS40000 Synchronous Buck Controller datasheet (Rev. D)	14 Nov 2005
	More literature	Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A)	29 Okt 2018
	Application note	PowerPAD™ Thermally Enhanced Package (Rev. H)	06 Jul 2018
	Selection guide	Power Management Guide 2018 (Rev. R)	25 Jun 2018
	User guide	TPS40000/1 Controller Enables High Power Sync Step-Down Converter for Low-Logic (Rev. B)	08 Jul 2005
	User guide	TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. B)	08 Jul 2005
	User guide	Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Costs Low (Rev. B)	08 Jul 2005
	User guide	TPS40000/1 Controller Enables High Power Synchronous Step-Down Converter for Low (Rev. A)	27 Jan 2003
	User guide	TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. A)	27 Jan 2003
	User guide	TPS40002/3 Controllers Enable Miniature Synchronous Step-Down Converter for Low (Rev. A)	27 Jan 2003
	User guide	TPS40003EVM (Rev. A)	27 Jan 2003
	User guide	Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Power Sys (Rev. A)	27 Jan 2003
	Application note	Predictive Gate Drive Boosts Converter Efficiency	18 Dez 2002
	More literature	Seminar 1400 Topic 7 The Implication of Synchronous Rectifiers to the Design of	22 Apr 2002

Design und Entwicklung

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