전력 관리 DC/DC switching regulators DC/DC converters

TPS62122

활성

15V, 75mA, 96% 효율 스텝다운 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS629203 활성 SOT-583 패키지의 3V~17V, 0.3A, 저 IQ, 동기 벅 컨버터 Improved efficiency, smaller size and lower IQ.

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 0.075 Vin (max) (V) 15 Vin (min) (V) 2 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Features Enable, Light-load efficiency, 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) 15 Vin (min) (V) 2 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Features Enable, Light-load efficiency, 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
WSON (DRV) 6 4 mm² 2 x 2
  • 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 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.

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS62120 활성 DCS 제어를 지원하는 15V, 75mA, 96% 효율 스텝다운 컨버터 Same product with PG pin in a different package.

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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20개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet TPS6212x 15-V, 75-mA Highly Efficient Buck Converter datasheet (Rev. A) PDF | HTML 2015/07/31
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
Application note Using the TPS62120 in an Inverting Buck-Boost Topology (Rev. C) PDF | HTML 2022/11/29
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/05/23
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019/06/14
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018/06/22
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017/06/15
Technical article Cutting the last wire to unleash Industry 4.0 PDF | HTML 2016/10/27
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 2015/10/30
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015/08/17
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015/01/29
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013/07/25
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012/08/09
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012/04/26
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/01/13
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 2012/01/12
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011/06/17

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

TPS62122EVM-586 — TPS62122 평가 모듈

The TPS62122EVM-586 is a fully assembled and tested platform for evaluating the operation and performance of the TPS62122 converter. The TPS62122EVM-586 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 (...)

사용 설명서: PDF
TI.com에서 구매할 수 없음
시뮬레이션 모델

TPS62122 PSpice Unencrypted Transient Model (Rev. B)

SLIM217B.ZIP (218 KB) - PSpice Model
시뮬레이션 모델

TPS62122 TINA-TI Transient Reference Design

SLVM314.TSC (862 KB) - TINA-TI Reference Design
시뮬레이션 모델

TPS62122 TINA-TI Transient Spice Model

SLVM315.ZIP (44 KB) - TINA-TI Spice Model
계산 툴

SLVC780 Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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지원되는 제품 및 하드웨어

레퍼런스 디자인

TIDA-00690 — 무선 스위치 전원용 에너지 하베스팅 레퍼런스 디자인

TIDA-00690 레퍼런스 설계는 에너지 하베스팅 스위치를 위한 솔루션입니다. 선형 발전기처럼 제작된 이 스위치는 기계적 에너지를 전기 에너지로 변환합니다. 이 전기 에너지는 TIDA-00690의 설계 덕분에 최적의 방식으로 수확됩니다. 이 설계를 통해 밸브 또는 기타 기계 액추에이터, 비상 스위치 및 기계 컨트롤러의 시작/중지를 위한 무선 위치 제어가 가능합니다. 그리고 무선을 사용하면 시스템의 유연성과 가동 시간이 늘어납니다. 예를 들어 기계적 진동이 있거나 화학적으로 위험한 환경에서는 유선이 적절하지 않을 수 있습니다.
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
WSON (DRV) 6 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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