TPS62120

アクティブ

DCS 制御付き、15V、75mA、効率性 96%、降圧コンバータ

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データシート

document-pdfAcrobat TPS6212x 15-V, 75-mA Highly Efficient Buck Converter データシート (Rev. A) (英語) PDF | HTML

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TPS629203

アクティブ

SOT-583 パッケージ封止、3V ～ 17V、0.3A、低静止電流 (IQ)、同期整流降圧コンバータ Improved efficiency, smaller size and lower IQ.

TPS62120

アクティブ

データシート

ご注文はこちら

製品詳細

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.075

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

5.5

Vout (min) (V)

1.2

Features

Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification

Control mode

Constant on-time (COT), DCS-Control

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000011

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.075

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

5.5

Vout (min) (V)

1.2

Features

Enable, Light Load Efficiency, Output discharge, Power good, Synchronous Rectification

Control mode

Constant on-time (COT), DCS-Control

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.000011

Duty cycle (max) (%)

100

SOT-23 (DCN)

4.64 mm² (2.9 mm × 1.6 mm)

Wide Input Voltage Range: 2 V to 15 V
Up to 96% Efficiency
Power Save Mode With 11-µA Quiescent Current
Output Current 75 mA
Output Voltage Range: 1.2 V to 5.5 V
Up to 800-kHz Switch Frequency
Synchronous Converter, No External Rectifier
Low Output Ripple Voltage
100% Duty Cycle for Lowest Dropout
Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm
DFN 6-Pin (TPS62122) Package
Internal Soft Start
Power Good Open Drain Output (TPS62120)
Open-Drain Output for Output Discharge
(TPS62120)
2.5-V Rising and 1.85-V Falling UVLO Thresholds

Wide Input Voltage Range: 2 V to 15 V
Up to 96% Efficiency
Power Save Mode With 11-µA Quiescent Current
Output Current 75 mA
Output Voltage Range: 1.2 V to 5.5 V
Up to 800-kHz Switch Frequency
Synchronous Converter, No External Rectifier
Low Output Ripple Voltage
100% Duty Cycle for Lowest Dropout
Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm
DFN 6-Pin (TPS62122) Package
Internal Soft Start
Power Good Open Drain Output (TPS62120)
Open-Drain Output for Output Discharge
(TPS62120)
2.5-V Rising and 1.85-V Falling UVLO Thresholds

The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors.

The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.

With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation.

In shutdown mode, the device is turned off.

An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.

The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.

The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.

The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.

In shutdown mode, the device is turned off.

An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.

The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.

The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.

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TPS62122

アクティブ

15V、75mA、効率 96%、降圧コンバータ Same product without PG pin and in a smaller package.

技術資料

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上位の文書	タイプ	タイトル	フォーマットオプション	最新の英語版をダウンロード	日付
*	データシート	TPS6212x 15-V, 75-mA Highly Efficient Buck Converter データシート (Rev. A)	PDF \| HTML		2015/07/31
	アプリケーション・ノート	Using the TPS62120 in an Inverting Buck-Boost Topology (Rev. C)	PDF \| HTML		2022/11/29
	アプリケーション・ノート	Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B)	PDF \| HTML		2022/05/23
	セレクション・ガイド	Buck Converter Quick Reference Guide (Rev. B)			2021/04/08
	アナログデザインジャーナル	Methods of output-voltage adjustment for DC/DC converters			2019/06/14
	アプリケーション・ノート	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)			2018/12/11
	セレクション・ガイド	電源 IC セレクション・ガイド 2018 (Rev. R 翻訳版)		英語版 (Rev.R)	2018/09/13
	アナログデザインジャーナル	Understanding 100% mode in low-power DC/DC converters			2018/06/22
	アナログデザインジャーナル	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold			2017/10/24
	アプリケーション・ノート	Extending the Soft Start Time Without a Soft Start Pin (Rev. B)			2017/06/15
	アナログデザインジャーナル	Testing tips for applying external power to supply outputs without an input voltage			2016/10/24
	アナログデザインジャーナル	Understanding frequency variation in the DCS-Control(TM) topology			2015/10/30
	アプリケーション・ノート	Basic Calculation of a Buck Converter's Power Stage (Rev. B)	PDF \| HTML		2015/08/17
	アナログデザインジャーナル	Five steps to a great PCB layout for a step-down converter			2015/01/29
	アナログデザインジャーナル	High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions			2013/07/25
	アプリケーション・ノート	How to Measure the Control Loop of DCS-Control Devices (Rev. A)			2012/08/09
	アナログデザインジャーナル	Design considerations for a resistive feedback divider in a DC/DC converter			2012/04/26
	ホワイト・ペーパー	Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D)			2012/03/28
	アプリケーション・ノート	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)			2012/01/13
	アプリケーション・ノート	Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C)			2012/01/12
	アプリケーション・ノート	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs			2011/09/19
	アナログデザインジャーナル	IQ: What it is, what it isn’t, and how to use it			2011/06/17

設計と開発

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評価ボード

TPS62120EVM-640 — TPS62120 評価モジュール

The TPS62120EVM-640 is a fully assembled and tested platform for evaluating the operation andperformance of the TPS62120 converter. The TPS62120EVM-640 has an input voltage range from 2.0 V up to 15 V, and the output voltage is adjustable with an external feedback divider network in the range of (...)

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