TPS61254

Name: TPS61254
Brand: TI
SKU: TPS61254
Price: 0.418 USD

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3,5-MHz-, 4,5-V-, 800-mA-Lastaufwärtswandler in 1,2-mm x 1,3-mm-WCSP

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Datenblatt

document-pdfAcrobat TPS6125x 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging datasheet (Rev. G) (Englisch) PDF | HTML

TPS61254

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Datenblatt

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Produktdetails

Vin (min) (V)

2.5

Vin (max) (V)

4.35

Topology

Boost

Type

Converter

Switching frequency (min) (kHz)

3500

Switching frequency (max) (kHz)

3500

Features

Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification

Vout (min) (V)

4.5

Vout (max) (V)

4.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000023

Vin (min) (V)

2.5

Vin (max) (V)

4.35

Topology

Boost

Type

Converter

Switching frequency (min) (kHz)

3500

Switching frequency (max) (kHz)

3500

Features

Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification

Vout (min) (V)

4.5

Vout (max) (V)

4.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000023

DSBGA (YFF)

9

1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001

93% Efficiency at 3.5-MHz Operation
21-µA Quiescent Current in Standby Mode
37-µA Quiescent Current in Normal Operation
Wide V_IN Range From 2.3 V to 5.5 V
V_IN ≥ V_OUT Operation
I_OUT ≥ 800 mA at V_OUT= 4.5 V, V_IN ≥ 2.65 V
I_OUT ≥ 1000 mA at V_OUT = 5.0 V, V_IN ≥ 3.3 V
I_OUT ≥ 1500 mA (Peak) at V_OUT = 5.0 V, V_IN ≥ 3.3 V
±2% Total DC Voltage Accuracy
Light-Load PFM Mode
Selectable Standby Mode or True Load
Disconnect During Shutdown
Thermal Shutdown and Overload Protection
Only Three Surface-Mount External Components
Required
Total Solution Size < 25 mm²
9-Pin NanoFree™ (CSP) Packaging

93% Efficiency at 3.5-MHz Operation
21-µA Quiescent Current in Standby Mode
37-µA Quiescent Current in Normal Operation
Wide V_IN Range From 2.3 V to 5.5 V
V_IN ≥ V_OUT Operation
I_OUT ≥ 800 mA at V_OUT= 4.5 V, V_IN ≥ 2.65 V
I_OUT ≥ 1000 mA at V_OUT = 5.0 V, V_IN ≥ 3.3 V
I_OUT ≥ 1500 mA (Peak) at V_OUT = 5.0 V, V_IN ≥ 3.3 V
±2% Total DC Voltage Accuracy
Light-Load PFM Mode
Selectable Standby Mode or True Load
Disconnect During Shutdown
Thermal Shutdown and Overload Protection
Only Three Surface-Mount External Components
Required
Total Solution Size < 25 mm²
9-Pin NanoFree™ (CSP) Packaging

The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.

The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.

The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

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Alle anzeigen 9

	Typ	Titel		Datum
*	Data sheet	TPS6125x 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging datasheet (Rev. G)	PDF \| HTML	16 Jun 2016
	Application note	Basic Calculation of a Boost Converter's Power Stage (Rev. D)	PDF \| HTML	28 Okt 2022
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11 Dez 2018
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Application note	Five Steps to a Good PCB Layout of the Boost Converter	PDF \| HTML	03 Mai 2016
	EVM User's guide	TPS6125xEVM-766, 3.5-MHZ HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE		30 Mai 2012
	EVM User's guide	TPS6125xEVM User Guide		18 Sep 2011
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17 Jun 2011
	Application note	Minimizing Ringing at the Switch Node of a Boost Converter		15 Sep 2006

Design und Entwicklung

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Evaluierungsplatine

TPS61254EVM-711 — Evaluierungsmodul für TPS61254, winziger Aufwärtswandler mit Eingangsstrombegrenzung und Bypas

The TPS6125XEVM-711 enables test and evaluation of the Texas Instruments' TPS61254 and TPS61256 (TPS6125x) devices, a series of 3.5-MHz, up to 5.5-V, step-up dc-dc converters. This user's guide includes EVM specifications, the schematic diagram, bill of materials, and board layout. The TPS6125x (...)

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