전력 관리 DC/DC 스위칭 레귤레이터 DC/DC 컨버터

TPS54325-Q1

활성

오토모티브 4.5V~18V, 3A 동기 벅 컨버터(DCAP2 모드 지원)

제품 상세 정보

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Features Enable, Power good, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 105 Iq (typ) (A) 0.00085 Duty cycle (max) (%) 90
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Features Enable, Power good, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 105 Iq (typ) (A) 0.00085 Duty cycle (max) (%) 90
HTSSOP (PWP) 14 32 mm² (5 mm × 6.4 mm)
  • Qualified for automotive applications
  • D-CAP2™ mode enables fast transient response
  • Low output ripple and allows ceramic output capacitor
  • 4.5-V to 18-V wide VCC input voltage range
  • 2.0-V to 18-V wide VIN input voltage range
  • 0.76-V to 5.5-V output voltage range
  • Highly efficient integrated FETs optimized for lower duty cycle applications –120 mΩ (high side) and 70 mΩ (low side)
  • High efficiency, less than 10 µA at shutdown
  • High initial bandgap reference accuracy
  • Adjustable soft start
  • Prebiased soft start
  • 700-kHz switching frequency (fSW)
  • Cycle-by-cycle overcurrent limit
  • Power-good output
  • Create a custom design using the TPS54325-Q1 with the WEBENCH Power Designer
  • Qualified for automotive applications
  • D-CAP2™ mode enables fast transient response
  • Low output ripple and allows ceramic output capacitor
  • 4.5-V to 18-V wide VCC input voltage range
  • 2.0-V to 18-V wide VIN input voltage range
  • 0.76-V to 5.5-V output voltage range
  • Highly efficient integrated FETs optimized for lower duty cycle applications –120 mΩ (high side) and 70 mΩ (low side)
  • High efficiency, less than 10 µA at shutdown
  • High initial bandgap reference accuracy
  • Adjustable soft start
  • Prebiased soft start
  • 700-kHz switching frequency (fSW)
  • Cycle-by-cycle overcurrent limit
  • Power-good output
  • Create a custom design using the TPS54325-Q1 with the WEBENCH Power Designer

The TPS54325-Q1 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54325-Q1 enables system designers to complete the suite of power bus regulators for various end equipments with a cost effective, low component count, low standby current solution. The main control loop for the TPS54325-Q1 uses the D-CAP2 mode control, which provides a very fast transient response with no external components. The TPS54325-Q1 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V VCC input, and from a 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow-start time and a power good function. The TPS54325-Q1 is available in the 14-pin HTSSOP package, and designed to operate from –40°C to 105°C.

The TPS54325-Q1 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54325-Q1 enables system designers to complete the suite of power bus regulators for various end equipments with a cost effective, low component count, low standby current solution. The main control loop for the TPS54325-Q1 uses the D-CAP2 mode control, which provides a very fast transient response with no external components. The TPS54325-Q1 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V VCC input, and from a 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow-start time and a power good function. The TPS54325-Q1 is available in the 14-pin HTSSOP package, and designed to operate from –40°C to 105°C.

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TPS62903-Q1 활성 165°C 접합부 온도를 지원하는 오토모티브, 3V~18V, 3A, 저 IQ 동기 벅 컨버터 DCAS-control power topology, improved efficiency, smaller size, and lower IQ

기술 자료

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* 데이터 시트 TPS54325-Q1 4.5-V to 18-V, 3-A Output Synchronous SWIFT Step-Down Switcher With Integrated FET datasheet (Rev. A) PDF | HTML 2022. 7. 8
기술 문서 Duty Cycle Calculation in WEBENCH® Power Designer PDF | HTML 2015. 5. 29

설계 및 개발

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평가 보드

TPS54325EVM — 5V~17V 입력, 3A 컨버터 평가 모듈

The TPS54325EVM (evaluation module) is a fully assembled and tested circuit for evaluating the TPS54428 synchronous step-down converter. The EVM operates from a 4.5-V to 18-V input and provides a 1.05-V output up to 3-A load. The main control loop of TPS54325 uses D-CAP2™ mode control, which (...)

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HTSSOP (PWP) 14 Ultra Librarian

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