TPS40000

Name: TPS40000
Brand: TI
SKU: TPS40000
Price: 0.921 USD

現行

低輸入 (2.25V-5.5V) 300 kHz 頻率同步降壓控制器，僅用作來源控制器

立即訂購

產品規格表

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

TPS40000

現行

產品規格表

立即訂購

產品詳細資料

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

Features

Enable, Synchronous Rectification

Iq (typ) (µA)

1500

Duty cycle (max) (%)

94

Number of phases

1

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

Features

Enable, Synchronous Rectification

Iq (typ) (µA)

1500

Duty cycle (max) (%)

94

Number of phases

1

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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	類型	標題	日期
*	Data sheet	TPS40000 Synchronous Buck Controller datasheet (Rev. D)	2005年 11月 14日
	More literature	Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A)	2018年 10月 29日
	Application note	PowerPAD™ Thermally Enhanced Package (Rev. H)	2018年 7月 6日
	Selection guide	Power Management Guide 2018 (Rev. R)	2018年 6月 25日
	Application note	Automated Frequency Response Analyzer	2013年 10月 9日
	User guide	TPS40000/1 Controller Enables High Power Sync Step-Down Converter for Low-Logic (Rev. B)	2005年 7月 8日
	User guide	TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. B)	2005年 7月 8日
	User guide	Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Costs Low (Rev. B)	2005年 7月 8日
	User guide	TPS40000/1 Controller Enables High Power Synchronous Step-Down Converter for Low (Rev. A)	2003年 1月 27日
	EVM User's guide	TPS40001EVM (Rev. A)	2003年 1月 27日
	User guide	TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. A)	2003年 1月 27日
	User guide	TPS40002/3 Controllers Enable Miniature Synchronous Step-Down Converter for Low (Rev. A)	2003年 1月 27日
	User guide	Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Power Sys (Rev. A)	2003年 1月 27日
	Application note	Predictive Gate Drive Boosts Converter Efficiency	2002年 12月 18日
	More literature	Seminar 1400 Topic 7 The Implication of Synchronous Rectifiers to the Design of	2002年 4月 22日