TPS65145 5V/0.96A(I/O), 4 チャネル・マルチコンバータ、LDO コントローラ、異常検出 および パワーグッド端子付、LCD バイアス用 |

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5V/0.96A(I/O), 4 チャネル・マルチコンバータ、LDO コントローラ、異常検出 および パワーグッド端子付、LCD バイアス用



  • TPS65100  -  TPS65145 の機能へ Vcom を追加
  • TPS65150  -  TPS65145 の機能へ Vcom を追加、LDO なし


The TPS6514x series offers a compact and small power supply solution to provide all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.

The main output VO1 is a 1.6-MHz fixed frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65140 and TPS65141 has a typical switch current limit of 2.3 A and the TPS65145 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler or tripler provides the positive LCD gate drive voltage. An externally adjustable negative charge pump provides the negative gate drive voltage. Due to the high 1.6-MHz switching frequency of the charge pumps, inexpensive and small 220-nF capacitors can be used.

Additionally, the TPS6514x series has a system power good output to indicate when all supply rails are acceptable. For LCD panels powered by 5 V the device has a linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital circuits. For maximum safety, the TPS65140 and TPS65145 goes into shutdown as soon as one of the outputs is out of regulation. The device can be enabled again by toggling the input or the enable (EN) pin to GND. The TPS65141 does not enter shutdown when one of its outputs is below its power good threshold.


  • 2.7-V to 5.8-V Input Voltage Range
  • 1.6-MHz Fixed Switching Frequency
  • 3 Independent Adjustable Outputs
  • Main Output up to 15 V With <1% Typical Output
    Voltage Accuracy
  • Virtual Synchronous Converter Technology
  • Negative Regulated Charge Pump Driver VO2
  • Positive Charge Pump Converter VO3
  • Auxiliary 3.3-V Linear Regulator Controller
  • Internal Soft Start
  • Internal Power-On Sequencing
  • Fault Detection of All Outputs (TPS65140 and
  • No Fault Detection (TPS65141)
  • Thermal Shutdown
  • System Power Good
  • Available in 24-Pin HTSSOP and 24-Pin VQFN
    PowerPAD™ Packages


他の製品と比較 LCD / OLED ディスプレイ電源とドライバ メール Excelへダウンロード
Part number オーダー・オプション Display type IC integration Vin (Min) (V) Vin (Max) (V) Source driver voltage (Min) (V) Source driver voltage (Max) (V) Level shifter/scan driver (ch) Special function Topology Type Rating Package size: mm2:W x L (PKG) Package Group
TPS65145 ご注文 LCD Unipolar     LCD Bias     2.7     5.5     5     15     0                 Catalog     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
VQFN | 24