TPS51218

AKTIV

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

Rating

Catalog

Topology

Buck

Iout (max) (A)

20

Vin (max) (V)

28

Vin (min) (V)

3

Vout (max) (V)

2.6

Vout (min) (V)

0.7

Control mode

D-CAP

Features

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

Duty cycle (max) (%)

91

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)

0.7

Control mode

D-CAP

Features

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

Duty cycle (max) (%)

91

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: 0.7 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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Technische Dokumentation

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Alle anzeigen 3

Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	Step-Down Controller for Notebook Power Supply datasheet (Rev. B)		31.01.2012
	Benutzerhandbuch	TPS51218 Buck Controller Evaluation Module User's Guide (Rev. A)	PDF \| HTML	14.02.2022
	Anwendungshinweis	Intel Core i3, i5, i7 [Arrandale] Reference Design		21.07.2010

Design und Entwicklung

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