TPS51125

Name: TPS51125
Brand: TI
SKU: TPS51125
Price: 1.155 USD

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Controlador reductor síncrono de doble canal de 4.5 V a 28 V con LDO de 100 mA y Out-of-Audio™

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Hoja de datos

document-pdfAcrobat TPS51125 Dual-Synchronous, Step-Down Controller With Out-of-Audio™ Operation and 100-mA LDOS for Notebook System Power datasheet (Rev. H) (Inglés) PDF | HTML

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TPS51125

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Detalles del producto

Vin (min) (V)

5.5

Vin (max) (V)

28

Iout (max) (A)

20

Operating temperature range (°C)

-40 to 85

Control mode

D-CAP

Rating

Catalog

Vout (min) (V)

2

Vout (max) (V)

5.5

Iq (typ) (A)

0.00055

Duty cycle (max) (%)

93

Number of phases

1

Vin (min) (V)

5.5

Vin (max) (V)

28

Iout (max) (A)

20

Operating temperature range (°C)

-40 to 85

Control mode

D-CAP

Rating

Catalog

Vout (min) (V)

2

Vout (max) (V)

5.5

Iq (typ) (A)

0.00055

Duty cycle (max) (%)

93

Number of phases

1

VQFN (RGE)

24

16 mm² 4 x 4

Wide Input Voltage Range: 5.5 V to 28 V
Output Voltage Range: 2 V to 5.5 V
Built-In 100-mA, 5-V and 3.3-V LDO With Switches
Built-In 1% 2-V Reference Output
With or Without Out-of-Audio™ Mode Selectable
Light-Load and PWM-Only Operation
Internal 1.6-ms Voltage Servo Soft-Start
Adaptive On-Time Control Architecture With Four
Selectable Frequency Setting
4500 ppm/\xC2°C R_DS(on) Current Sensing
Built-In Output Discharge
Powergood Output
Built-In OVP/UVP/OCP
Thermal Shutdown (Nonlatch)
QFN, 24-Pin (RGE)
APPLICATIONS
- Notebook Computers
- I/O Supplies
- System Power Supplies

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Wide Input Voltage Range: 5.5 V to 28 V
Output Voltage Range: 2 V to 5.5 V
Built-In 100-mA, 5-V and 3.3-V LDO With Switches
Built-In 1% 2-V Reference Output
With or Without Out-of-Audio™ Mode Selectable
Light-Load and PWM-Only Operation
Internal 1.6-ms Voltage Servo Soft-Start
Adaptive On-Time Control Architecture With Four
Selectable Frequency Setting
4500 ppm/\xC2°C R_DS(on) Current Sensing
Built-In Output Discharge
Powergood Output
Built-In OVP/UVP/OCP
Thermal Shutdown (Nonlatch)
QFN, 24-Pin (RGE)
APPLICATIONS
- Notebook Computers
- I/O Supplies
- System Power Supplies

All other trademarks are the property of their respective owners

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltage for the load switches without reducing the efficiency of the main converter. The TPS51125 supports high-efficiency, fast-transient response and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125 is available in a 24-pin QFN package and is specified from –40°C to 85°C ambient temperature range.

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Documentación técnica

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=Principal documentación para este producto seleccionada por TI

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	Tipo	Título		Fecha
*	Data sheet	TPS51125 Dual-Synchronous, Step-Down Controller With Out-of-Audio™ Operation and 100-mA LDOS for Notebook System Power datasheet (Rev. H)	PDF \| HTML	05 ene 2015
	Application note	Intel Core i3, i5, i7 [Arrandale] Reference Design		21 jul 2010

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