TPS51217

現行

適用筆記型電腦電源的 3-V 至 28-V，20-A 同步 D-CAP 降壓控制器

立即訂購

產品規格表

document-pdfAcrobat High Performance, Single Synchronous Step-Down Controller .. datasheet (Rev. B) (英文)

TPS51217

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

20

Vin (max) (V)

28

Vin (min) (V)

3

Vout (max) (V)

2.6

Vout (min) (V)

0.6

Control mode

D-CAP

Features

Dynamic voltage scaling, Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification

Duty cycle (max) (%)

89

Iq (typ) (A)

0.00032

Number of phases

1

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Topology

Buck

Iout (max) (A)

20

Vin (max) (V)

28

Vin (min) (V)

3

Vout (max) (V)

2.6

Vout (min) (V)

0.6

Control mode

D-CAP

Features

Dynamic voltage scaling, Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification

Duty cycle (max) (%)

89

Iq (typ) (A)

0.00032

Number of phases

1

Operating temperature range (°C)

-40 to 85

WSON (DSC)

10

9 mm² (3 mm × 3 mm)

Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.6 V to 2.6 V
Wide Output Load Range: 0 to 20A+
Built-in 0.5% 0.6 V Reference
D-CAP Mode with 100-ns Load Step Response
Adaptive On Time Control Architecture with Fixed 340kHz Operation
Dynamic Output Voltage Change Capability
4700 ppm/°C R_DS(on) Current Sensing
Internal 0.9-ms Voltage Servo Softstart
Pre-Charged Start-up Capability
Built-in Output Discharge
Power Good Output
Integrated Boost Switch
Built-in OVP/UVP/OCP
Thermal Shutdown (Non-latch)
SON-10 (DSC) Package

Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.6 V to 2.6 V
Wide Output Load Range: 0 to 20A+
Built-in 0.5% 0.6 V Reference
D-CAP Mode with 100-ns Load Step Response
Adaptive On Time Control Architecture with Fixed 340kHz Operation
Dynamic Output Voltage Change Capability
4700 ppm/°C R_DS(on) Current Sensing
Internal 0.9-ms Voltage Servo Softstart
Pre-Charged Start-up Capability
Built-in Output Discharge
Power Good Output
Integrated Boost Switch
Built-in OVP/UVP/OCP
Thermal Shutdown (Non-latch)
SON-10 (DSC) Package

The TPS51217 is a small-sized single buck controller with adaptive on-time D-CAP™ mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET R_DS(on) current sensing supports low-loss and high efficiency, over a broad load range. The TRAN pin provides freedom of masking overvoltage protection, undervoltage protection and power-good signal during the transition period of dynamic output voltage change for modern GPU power supply applications. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.6 V to 2.6 V. The device requires an external 5-V supply. The TPS51217 is available in a 10-pin SON package specified from –40°C to 85°C.

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重要文件	類型	標題	格式選項	下載最新的英文版本		日期
*	資料表	High Performance, Single Synchronous Step-Down Controller .. datasheet (Rev. B)				2012/2/1
	使用指南	TPS51217 Buck Controller Evaluation Module User's Guide (Rev. A)	PDF \| HTML			2022/2/14