TPS61029-Q1 オートモーティブ・カタログ、アジャスタブル出力、1.8A スイッチ、96% 効率、ブースト・コンバータ、降圧モード付、QFN-10 | TIJ.co.jp

TPS61029-Q1
この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
オートモーティブ・カタログ、アジャスタブル出力、1.8A スイッチ、96% 効率、ブースト・コンバータ、降圧モード付、QFN-10

オートモーティブ・カタログ、アジャスタブル出力、1.8A スイッチ、96% 効率、ブースト・コンバータ、降圧モード付、QFN-10 - TPS61029-Q1
データシート
 

概要

The TPS6102x devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline, and discharge it down to 0.9 V. It can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents, the converter enters the Power Save Mode to maintain a high efficiency over a wide load current range. The Power Save Mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA or 1800 mA depending on the device version.

The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 10-pin VSON PowerPAD™ package.

特長

  • Qualified for Automotive Applications
  • 96% Efficient Synchronous Boost Converter
  • Output Voltage Remains Regulated When Input
    Voltage Exceeds Nominal Output Voltage
  • Device Quiescent Current: 25 µA (Typ)
  • Input Voltage Range: 0.9 V to 6.5 V
  • Fixed and Adjustable Output Voltage Options
    Up to 5.5 V
  • Power Save Mode for Improved Efficiency at
    Low Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Anti-ringing
    Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
  • Small 3-mm × 3-mm QFN-10 Package

機能一覧

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Part number オーダー・オプション 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 Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
TPS61029-Q1 ご注文 0.9     5.5     1.8     5.5     1.8     1     480     600     0.025     Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification    
100     -40 to 125     Converter     Automotive     VSON | 10    
TPS61040-Q1 サンプルは利用できません。 1.8     6     1.8     28     0.4     1     50     1000     0.028     Enable     88     -40 to 125     Converter     Automotive     SOT-23 | 5    
TPS61041-Q1 サンプルは利用できません。 1.8     6     1.8     28     0.25     1     50     1000     0.028     Enable     88     -40 to 125     Converter     Automotive     SOT-23 | 5    
TPS61071-Q1 ご注文 0.9     5.5     1.8     5.5     0.7     1     1200     1200     0.019     Synchronous Rectification     100     -40 to 105     Converter     Automotive     SOT-23-THIN | 6    
TPS61240-Q1 ご注文 2.3     5.5     5     5     0.6     1     3500     3500     0.03     Enable
Light Load Efficiency
Load Disconnect    
100     -40 to 105
-40 to 85    
Converter     Automotive     WSON | 6