LM2623-Q1 (供給中)

LM2623-Q1 ゲート付きオシレータ・ベースのオートモーティブ DC-DC 昇圧コンバータ

 

概要

The LM2623-Q1 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for automotive systems. The device accepts an input voltage between 0.9 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V.

In order to adapt to a number of applications, the LM2623-Q1 allows the designer to program the output voltage, the operating frequency (300 kHz to 2 MHz), and duty cycle (17% to 90%) to optimize performance. The selected values can be fixed or can vary with input voltage or input-to-output voltage ratio. The LM2623-Q1 uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. The device normally regulates by skipping switching cycles when it reaches the regulation limit (pulse frequency modulation (PFM)).

Refer to Non-Linear Effect and Choosing the Correct C3 Capacitor to resolve any design challenges before board design is finalized.

特長

  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4A
  • Good Efficiency Over a Very Wide Load Range
  • Very Low Output Voltage Ripple
  • Up to 2-MHz Switching Frequency
  • 0.9-V to 14-V Operating Voltage
  • 1.1-V Start-Up Voltage
  • 1.24-V to 14-V Adjustable Output Voltage
  • 0.17-Ω Internal MOSFET
  • Up to 90% Regulator Efficiency
  • 80-µA Typical Operating Current (Into VDD Pin of Supply)
  • Low Shutdown Current (IQ < 2.5 µA)
  • 4-mm × 4-mm Thermally Enhanced WSON Package Option

All trademarks are the property of their respective owners.

詳細を表示

機能一覧 他の製品と比較 昇圧型コンバータ (スイッチ内蔵)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Iout (Max) (A)
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
LM2623-Q1 LM2735-Q1 TPS61085-Q1 TPS61087-Q1 TPS61093-Q1 TPS61175-Q1
1.0    2.7    2.3    2.5    1.6    2.9   
14    5.5    6    6    6    18   
1.24    3    2.8    3    1.7    2.9   
14    24    18.5    18.5    17    38   
  2.25    2.6    4    1.1    3.8   
1    1    1    1    1    1   
300      480    900      160   
2000      1500    1500    1400    2640   
0.11    7    0.07    0.075    0.9    3   
Enable    Enable    Enable
Light Load Efficiency   
Enable
Frequency Synchronization
Power Good   
Enable
Output Discharge   
Enable
Frequency Synchronization
Light Load Efficiency   
2             
90      89    90    93    93   
-40 to 125    -40 to 125    -40 to 105    -40 to 125    -40 to 125    -40 to 125   
Automotive    Automotive    Automotive    Automotive    Automotive    Automotive   
WSON    SOT-23
WSON   
VSSOP    VSON    SON    HTSSOP   

その他の認定バージョン LM2623-Q1

バージョン 型番 定義
カタログ製品 LM2623 TI の標準カタログ製品