高性能、35A、1 回路同期整流・降圧コンバータ、アナログ REFIN 付き - TPS548D22

TPS548D22 (供給中)

高性能、35A、1 回路同期整流・降圧コンバータ、アナログ REFIN 付き

 

概要

The TPS548D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and 125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548D22 device is available in 5 mm × 7 mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

特長

  • Conversion Input Voltage Range (PVIN): 1.5 V to 16 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs with 40-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50 mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to 125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Startup Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • 5 mm × 7 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package

詳細を表示

機能一覧 他の製品と比較 降圧型コンバータ (スイッチ内蔵)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS548D22 TPS53353 TPS53355 TPS543C20 TPS548D21 TPS549D22 TPS56121 TPS56221
1.5    1.5    1.5    4    1.5    1.5    4.5    4.5   
16    15    15    16    16    16    14    14   
0.6    0.6    0.6    0.6    0.6    0.6    0.6    0.6   
5.5    5.5    5.5    5.5    5.5    5.5    12    12   
40    20    30    40    40    40    15    25   
1    1    1    1    1    1    1    1   
425    250    250    300    425    315    300    300   
1050    1000    1000    2000    1050    1125    1000    1000   
2    0.32    0.32    4.3    2    2    2.5    2.5   
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Enable
Frequency Synchronization
N/A
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Enable
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification   
D-CAP3    D-CAP    D-CAP    Current Mode    D-CAP3    D-CAP3    Voltage Mode    Voltage Mode   
80    90    90      80    80    93    93   
-40 to 125    -40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 85    -40 to 125    -40 to 125   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
LQFN-CLIP    LSON-CLIP    LSON-CLIP    LQFN-CLIP    LQFN-CLIP    LQFN-CLIP    LSON-CLIP    LSON-CLIP   
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WEBENCH® Designer TPS548D22

  最小   最大 範囲
入力電圧  V 1.5 to 16.0V
出力電圧  V 0.6 to 5.5V
負荷電流  A ≤ 40A
周囲温度  °C -40 to 85°C


電源占有面積 部品コスト 効率


Preview design