TPS51211

Name: TPS51211
Brand: TI
SKU: TPS51211
Price: 1.336 USD

現行

適用筆記型電腦電源的 4.5-V 至 28-V 同步降壓控制器

立即訂購

產品規格表

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

TPS51211

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

18

Vin (max) (V)

28

Vin (min) (V)

3

Vout (max) (V)

2.6

Vout (min) (V)

0.7

Control mode

D-CAP

Features

Enable, Light-load efficiency, Power good, Synchronous rectification

Operating temperature range (°C)

-40 to 85

Iq (typ) (µA)

300

Duty cycle (max) (%)

90

Number of phases

1

Rating

Catalog

Topology

Buck

Iout (max) (A)

18

Vin (max) (V)

28

Vin (min) (V)

3

Vout (max) (V)

2.6

Vout (min) (V)

0.7

Control mode

D-CAP

Features

Enable, Light-load efficiency, Power good, Synchronous rectification

Operating temperature range (°C)

-40 to 85

Iq (typ) (µA)

300

Duty cycle (max) (%)

90

Number of phases

1

WSON (DSC)

10

9 mm² 3 x 3

Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.7 V to 2.6 V
Wide Output Load Range: 0 to 20 A+
Built-In 0.5% 0.7 V Reference
290-kHz, Adaptive On-Time D-CAP™ MODE Control
4700 ppm/°C R_DS(on) Current Sensing
Internal 1-ms Voltage Servo Soft-Start
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: 0.7 V to 2.6 V
Wide Output Load Range: 0 to 20 A+
Built-In 0.5% 0.7 V Reference
290-kHz, Adaptive On-Time D-CAP™ MODE Control
4700 ppm/°C R_DS(on) Current Sensing
Internal 1-ms Voltage Servo Soft-Start
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 TPS51211 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 conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package specified from –40°C to 85°C.

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