TPS62421

Name: TPS62421
Brand: TI
SKU: TPS62421
Price: 0.71 USD

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Convertidor reductor doble (600 mA/1000 mA) de 2.25 MHz en encapsulado QFN pequeño de 3 mm × 3 mm

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document-pdfAcrobat TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package datasheet (Rev. D) (Inglés) PDF | HTML

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Convertidor reductor doble de 2.75 V a 6 V de 2 A o 3 A y 1 A en encapsulado QFN Smaller solution size with higher output voltage range 0.6 V to 5.5 V

TPS62421

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Detalles del producto

Iout (max) (A)

0.6

Vin (min) (V)

2.5

Vin (max) (V)

6

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

2000

Switching frequency (max) (kHz)

2500

Features

Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

1.2

Vout (max) (V)

1.8

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000032

Iout (max) (A)

0.6

Vin (min) (V)

2.5

Vin (max) (V)

6

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

2000

Switching frequency (max) (kHz)

2500

Features

Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

1.2

Vout (max) (V)

1.8

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000032

VSON (DRC)

10

9 mm² 3 x 3

High Efficiency up to 95%
V_IN Range from 2.5 V to 6 V
2.25-MHz Fixed Frequency Operation
Output Current 600 mA and 1000 mA
Adjustable Output Voltage from 0.6 V to V_IN
Pin Selectable Output Voltage Supports Simple
Dynamic VoltageScaling
Optional EasyScale One-Pin Serial Interface for
Dynamic Output Voltage Adjustment
Power-Save Mode at Light Load Currents
180° Out of Phase Operation
Output Voltage Accuracy in PWM Mode ±1%
Typical 32-µA Quiescent Current for both
Converters
100% Duty Cycle for Lowest Dropout
Available in a 10-Pin VSON (3 mm × 3 mm)

High Efficiency up to 95%
V_IN Range from 2.5 V to 6 V
2.25-MHz Fixed Frequency Operation
Output Current 600 mA and 1000 mA
Adjustable Output Voltage from 0.6 V to V_IN
Pin Selectable Output Voltage Supports Simple
Dynamic VoltageScaling
Optional EasyScale One-Pin Serial Interface for
Dynamic Output Voltage Adjustment
Power-Save Mode at Light Load Currents
180° Out of Phase Operation
Output Voltage Accuracy in PWM Mode ±1%
Typical 32-µA Quiescent Current for both
Converters
100% Duty Cycle for Lowest Dropout
Available in a 10-Pin VSON (3 mm × 3 mm)

The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors.

The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)

The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors.

The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package datasheet (Rev. D)	PDF \| HTML	31 jul 2015
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	06 dic 2023
	Analog Design Journal	Methods of output-voltage adjustment for DC/DC converters		14 jun 2019
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11 dic 2018
	Analog Design Journal	Understanding 100% mode in low-power DC/DC converters		22 jun 2018
	Application note	Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B)		29 nov 2017
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		24 oct 2017
	Analog Design Journal	Testing tips for applying external power to supply outputs without an input voltage		24 oct 2016
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)		17 ago 2015
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		29 ene 2015
	EVM User's guide	TPS624xxEVM-167 User Guide (Rev. A)		02 nov 2013
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		13 ene 2012
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17 jun 2011
	More literature	TPS62401_NanoEVM_ Schematic		13 feb 2007
	More literature	BQ24070_NanoEVM_OV		29 ene 2007
	More literature	TPS62401_NanoEVM_OV		29 ene 2007
	Application note	Output Voltage Selection for the TPS62400 Family of Buck Converters		20 sep 2006

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.