TPS65120RGTT
Active4-CH SINGLE INDUCTOR MULTIPLE OUTPUTS (SIMO) BIAS IC W/ FIXED 3.3V VLOGIC
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TPS65120RGTT
Active4-CH SINGLE INDUCTOR MULTIPLE OUTPUTS (SIMO) BIAS IC W/ FIXED 3.3V VLOGIC
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS65120RGTT |
|---|---|
| Applications | Converter, TFT LCD |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 16-VFQFN Exposed Pad |
| Supplier Device Package | 16-VQFN, 3x3 |
| Voltage - Input [Max] | 5.5 V |
| Voltage - Input [Min] | 2.5 V |
| Voltage - Output [Max] | 20 V, 5.6 V |
| Voltage - Output [Min] | -18 V, 3 V |
| Part | Mounting Type | Voltage - Input [Max] | Voltage - Input [Min] | Package / Case | Supplier Device Package | Operating Temperature [Max] | Operating Temperature [Min] | Applications | Voltage - Output [Max] | Voltage - Output [Min] | Number of Outputs | Board Type | Supplied Contents | Power - Output | Outputs and Type | Outputs and Type | Current - Output | Voltage - Output | Utilized IC / Part | Contents | Regulator Topology | Main Purpose |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | Surface Mount | 5.5 V | 2.5 V | 16-VFQFN Exposed Pad | 16-VQFN 3x3 | 85 °C | -40 C | Converter TFT LCD | 5.6 V 20 V | -18 V 3 V | 4 | |||||||||||
 Texas Instruments | 5.5 V | 2.5 V | Fully Populated | Board(s) | 287 mW | 4 Non-Isolated Outputs Non-Isolated | 4 | 4 mA 20 mA 25 mA | -12 V 3.3 V 5 V 12 V | TPS65120 | Board(s) | Boost | Special Purpose DC/DC LCD Supply | |||||||||
 Texas Instruments | Surface Mount | 5.5 V | 2.5 V | 16-VFQFN Exposed Pad | 16-VQFN 3x3 | 85 °C | -40 C | Converter TFT LCD | 5.6 V 20 V | -18 V 3 V | 4 | |||||||||||
 Texas Instruments | Surface Mount | 5.5 V | 2.5 V | 16-VFQFN Exposed Pad | 16-QFN (3x3) | 85 °C | -40 C | Converter TFT LCD | 5.6 V 20 V | -18 V 3 V | 4 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.04 | |
| 10 | $ 2.73 | |||
| 25 | $ 2.58 | |||
| 100 | $ 2.23 | |||
| Digi-Reel® | 1 | $ 3.04 | ||
| 10 | $ 2.73 | |||
| 25 | $ 2.58 | |||
| 100 | $ 2.23 | |||
| N/A | 888 | $ 3.70 | ||
| 2501 | $ 3.70 | |||
| Tape & Reel (TR) | 250 | $ 1.49 | ||
| 500 | $ 1.42 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.69 | |
| 100 | $ 2.36 | |||
| 250 | $ 1.65 | |||
| 1000 | $ 1.33 | |||
Description
General part information
TPS65120 Series
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.
The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to -18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions. Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.
Documents
Technical documentation and resources