전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS62421

활성

소형 3x3mm QFN 패키지, 2.25MHz 600mA/1000mA 듀얼 스텝다운 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
이 제품은 기존 고객을 위해 계속 제공됩니다. 새로운 설계는 대체 제품을 고려해야 합니다.
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS62442 활성 QFN 패키지의 2.75V~6V, 듀얼 2A 또는 3A 및 1A 스텝다운 컨버터 Smaller solution size with higher output voltage range 0.6 V to 5.5 V

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 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, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.8 Iq (typ) (µA) 32 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 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, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.8 Iq (typ) (µA) 32 Duty cycle (max) (%) 100
VSON (DRC) 10 9 mm² 3 x 3
  • High Efficiency up to 95%
  • VIN 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 VIN
  • 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%
  • VIN 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 VIN
  • 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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기술 자료

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17개 모두 보기
유형 직함 날짜
* 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 2015/07/31
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
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
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017/11/29
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
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
EVM User's guide TPS624xxEVM-167 User Guide (Rev. A) 2013/11/02
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/01/13
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011/06/17
More literature TPS62401_NanoEVM_ Schematic 2007/02/13
More literature BQ24070_NanoEVM_OV 2007/01/29
More literature TPS62401_NanoEVM_OV 2007/01/29
Application note Output Voltage Selection for the TPS62400 Family of Buck Converters 2006/09/20

설계 및 개발

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

시뮬레이션 모델

TPS62420 PSpice Average Model

SLIM129.ZIP (84 KB) - PSpice Model
시뮬레이션 모델

TPS62420 PSpice Transient Model

SLIM130.ZIP (310 KB) - PSpice Model
시뮬레이션 모델

TPS62421 PSpice Unencrypted Transient Model Package (Rev. A)

SLVMBC1A.ZIP (87 KB) - PSpice Model
거버(Gerber) 파일

TPS624xxVM Gerber Files

SLVC132.ZIP (101 KB)
패키지 CAD 기호, 풋프린트 및 3D 모델
VSON (DRC) 10 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

지원 및 교육

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