TPS51218

Name: TPS51218
Brand: TI
SKU: TPS51218
Price: 0.8 USD

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Synchron-D-CAP-Abwärtsregler von 3 V bis 28 V, 20 A, für die Stromversorgung von Notebooks

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Datenblatt

document-pdfAcrobat Step-Down Controller for Notebook Power Supply datasheet (Rev. B) (Englisch)

TPS51218

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Vin (min) (V)

3

Vin (max) (V)

28

Iout (max) (A)

20

Operating temperature range (°C)

-40 to 85

Control mode

D-CAP

Topology

Buck

Rating

Catalog

Vout (min) (V)

0.7

Vout (max) (V)

2.6

Features

Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification

Iq (typ) (µA)

320

Duty cycle (max) (%)

91

Number of phases

1

Vin (min) (V)

3

Vin (max) (V)

28

Iout (max) (A)

20

Operating temperature range (°C)

-40 to 85

Control mode

D-CAP

Topology

Buck

Rating

Catalog

Vout (min) (V)

0.7

Vout (max) (V)

2.6

Features

Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification

Iq (typ) (µA)

320

Duty cycle (max) (%)

91

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 20A+
Built-in 0.5% 0.7 V Reference
D-CAP™ Mode with 100-ns Load Step Response
Adaptive On Time Control Architecture With 4 Selectable
Frequency Setting
4700 ppm/°C R_DS(on) Current Sensing
Internal 1-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: 0.7 V to 2.6 V
Wide Output Load Range: 0 to 20A+
Built-in 0.5% 0.7 V Reference
D-CAP™ Mode with 100-ns Load Step Response
Adaptive On Time Control Architecture With 4 Selectable
Frequency Setting
4700 ppm/°C R_DS(on) Current Sensing
Internal 1-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 TPS51218 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 selections 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 TPS51218 is available in a 10-pin SON package specified from –40°C to 85°C.

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Alle anzeigen 3

	Typ	Titel		Datum
*	Data sheet	Step-Down Controller for Notebook Power Supply datasheet (Rev. B)		31 Jan 2012
	User guide	TPS51218 Buck Controller Evaluation Module User's Guide (Rev. A)	PDF \| HTML	14 Feb 2022
	Application note	Intel Core i3, i5, i7 [Arrandale] Reference Design		21 Jul 2010

Design und Entwicklung

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