TPS61090 输入电压为 1.8V、开关电流为 2A、效率高达 96% 的升压转换器 | 德州仪器 TI.com.cn

TPS61090 (正在供货) 输入电压为 1.8V、开关电流为 2A、效率高达 96% 的升压转换器

输入电压为 1.8V、开关电流为 2A、效率高达 96% 的升压转换器 - TPS61090
数据表
 

备选器件推荐

  • TPS61230  -  For applications requiring smaller package or higher output current

描述

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

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 output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm × 4-mm (16 RSA) package.

特性

  • Synchronous (96% Efficient) Boost Converter
    With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 × 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output
    Voltage Options
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection

参数

与其它产品相比 升压转换器(集成开关) 邮件 下载到电子表格中
Part number 立即下单 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
TPS61090 立即下单 1.8     5.5     1.8     5.5     2     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     QFN | 16    
TPS61030 立即下单 1.8     5.5     1.8     5.5     4     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     HTSSOP | 16
QFN | 16    
TPS61091 无样片 1.8     5.5     3.3     3.3     2     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     QFN | 16    
TPS61092 立即下单 1.8     5.5     5     5     2     1     500     700     0.02     Synchronous Rectification     100     -40 to 85     Converter     Catalog     QFN | 16