LM53625-Q1 2.5/3.5A、36V、2.1MHz、汽车类同步降压直流/直流转换器 | 德州仪器 TI.com.cn

LM53625-Q1
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2.5/3.5A、36V、2.1MHz、汽车类同步降压直流/直流转换器

2.5/3.5A、36V、2.1MHz、汽车类同步降压直流/直流转换器 - LM53625-Q1
数据表
LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC Converter 数据表   (英文內容)
 

描述

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.

特性

  • AEC-Q100 Automotive Qualified:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C6
  • –40°C to +150°C Junction Temperature Range
  • 15-µA Quiescent Current at no Load (Typical) with 3.3-V Output
  • 4 mm × 5 mm, 0.5-mm Pitch VQFN Package With Wettable Flanks and 0.6-mm VIN Spacing
  • Low EMI and Switch Noise
  • Spread Spectrum Option
  • External Frequency Synchronization
  • RESET Output with Internal Filter and 3-ms Release Timer
  • Pin-Selectable Forced PWM Mode
  • Built-In Compensation, Soft Start, Current Limit, Thermal Shutdown, and UVLO
  • 0.6-V Dropout at 3.5 A at 105°C TA
  • ±1% Output Voltage Tolerance (–40°C to 125°C TJ)
  • Available With Fixed 5-V, 3.3-V or Adjustable Output

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WEBENCH® Designer LM53625-Q1

  最小   最大 范围
输入电压 –  V 3.5 to 36.0V
输出电压  V 3.3 to 10V
输出电流  A ≤ 2.5A
环境温度  °C -40 to 150°C

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参数

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Part number 立即下单 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) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
LM53625-Q1 立即下单 3.5     42     3.2     10     2.5     1     1850     2350     0.018     Enable
Fixed Output
Forced PWM
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Spread Spectrum
Synchronous Rectification
Wettable Flanks Package
Soft Start Fixed    		 Current Mode     98     -40 to 150     Automotive     VQFN-HR | 22     Converter     22VQFN-HR: 20 mm2: 4 x 5 (VQFN-HR | 22)    
LM26001-Q1 立即下单 3     38     1.25     35     1.5     1     150     500     0.038     Enable
Forced PWM
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Soft Start Adjustable    		 Current Mode     98     -40 to 125     Automotive     HTSSOP | 16     Converter     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)    
LM53601-Q1 立即下单 3.5     42     3.2     6     1     1     1890     2400     0.023     Enable
Fixed Output
Forced PWM
Frequency Synchronization
Light Load Efficiency
Power Good
Soft Start Fixed
Spread Spectrum
Synchronous Rectification
UVLO Fixed
Wettable Flanks Package
Soft Start Fixed    		 Current Mode     98     -40 to 150     Automotive     WSON | 10     Converter     10WSON: 9 mm2: 3 x 3 (WSON | 10)    
LM53603-Q1 立即下单 3.5     42     3.2     9.9     3     1     1850     2350     0.023     Enable
Forced PWM
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
Synchronous Rectification
Soft Start Fixed    		 Current Mode     98     -40 to 150     Automotive     HTSSOP | 16     Converter     16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)