TPS62403

Name: TPS62403
Brand: TI
SKU: TPS62403
Price: 0.66 USD

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Dual, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN

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Data sheet

document-pdfAcrobat TPS6240x 2.25-MHz 400-mA and 600-mA Dual Step-Down Converter In Small 3-mm x 3-mm VSON Package datasheet (Rev. F) PDF | HTML

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TPS62442

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2.75-V to 6-V, dual 2-A or 3-A and 1-A step-down converter in QFN package Smaller solution size with higher output voltage range 0.6 V to 5.5 V

TPS62403

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Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

0.4

Vin (min) (V)

2.5

Vin (max) (V)

6

Switching frequency (min) (kHz)

2000

Switching frequency (max) (kHz)

2500

Features

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

Control mode

Voltage mode

Vout (min) (V)

1.1

Vout (max) (V)

1.575

Iq (typ) (µA)

32

Duty cycle (max) (%)

100

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

0.4

Vin (min) (V)

2.5

Vin (max) (V)

6

Switching frequency (min) (kHz)

2000

Switching frequency (max) (kHz)

2500

Features

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

Control mode

Voltage mode

Vout (min) (V)

1.1

Vout (max) (V)

1.575

Iq (typ) (µA)

32

Duty cycle (max) (%)

100

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 of 400 mA and 600 mA
Adjustable Output Voltage From 0.6V to V_IN
Pin-Selectable Output Voltage Supports Simple
Dynamic Voltage Scaling
EasyScale Optional One-Pin Serial Interface
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)
APPLICATIONS
- Cell Phones, Smart Phones
- PDAs, Pocket PCs
- OMAP and Low-Power DSP Supply
- Portable Media Players
- Digital Radios
- Digital Cameras

All other trademarks are the property of their respective owners

High Efficiency—Up to 95%
V_IN Range From 2.5 V to 6 V
2.25-MHz Fixed Frequency Operation
Output Current of 400 mA and 600 mA
Adjustable Output Voltage From 0.6V to V_IN
Pin-Selectable Output Voltage Supports Simple
Dynamic Voltage Scaling
EasyScale Optional One-Pin Serial Interface
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)
APPLICATIONS
- Cell Phones, Smart Phones
- PDAs, Pocket PCs
- OMAP and Low-Power DSP Supply
- Portable Media Players
- Digital Radios
- Digital Cameras

All other trademarks are the property of their respective owners

The TPS6240x family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications. The devices provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range from 2.5 V to 6 V, the TPS62400 is ideal to power portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403, and TPS62404 support one-pin controlled simple Dynamic Voltage Scaling for low-power processors.

The TPS6240x operates at a 2.25-MHz fixed switching frequency and enters 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, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

The TPS62400 is available in a 10-pin leadless package (3-mm × 3-mm VSON)

The TPS6240x family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications. The devices provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range from 2.5 V to 6 V, the TPS62400 is ideal to power portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403, and TPS62404 support one-pin controlled simple Dynamic Voltage Scaling for low-power processors.

The TPS6240x operates at a 2.25-MHz fixed switching frequency and enters 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, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

The TPS62400 is available in a 10-pin leadless package (3-mm × 3-mm VSON)

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	Type	Title		Date
*	Data sheet	TPS6240x 2.25-MHz 400-mA and 600-mA Dual Step-Down Converter In Small 3-mm x 3-mm VSON Package datasheet (Rev. F)	PDF \| HTML	30 Jul 2014
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	06 Dec 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 Dec 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 Aug 2015
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		29 Jan 2015
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		13 Jan 2012
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17 Jun 2011