TPS60231RGTR
Active3-CHANNEL, CURRENT-REGULATED 75-MA CHARGE PUMP FOR WHITE LED BACKLIGHT IN 3X3 QFN
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TPS60231RGTR
Active3-CHANNEL, CURRENT-REGULATED 75-MA CHARGE PUMP FOR WHITE LED BACKLIGHT IN 3X3 QFN
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS60231RGTR |
|---|---|
| Applications | Backlight |
| Current - Output / Channel [custom] | 25 mA |
| Dimming | PWM |
| Frequency | 1 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 3 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-VFQFN Exposed Pad |
| Supplier Device Package | 16-VQFN (3x3) |
| Topology | Switched Capacitor (Charge Pump) |
| Type | DC DC Regulator |
| Voltage - Output | 5.5 V |
| Voltage - Supply (Max) [Max] | 6.5 V |
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 | $ 1.16 | |
| 10 | $ 1.03 | |||
| 25 | $ 0.98 | |||
| 100 | $ 0.81 | |||
| 250 | $ 0.75 | |||
| 500 | $ 0.67 | |||
| 1000 | $ 0.53 | |||
| Digi-Reel® | 1 | $ 1.16 | ||
| 10 | $ 1.03 | |||
| 25 | $ 0.98 | |||
| 100 | $ 0.81 | |||
| 250 | $ 0.75 | |||
| 500 | $ 0.67 | |||
| 1000 | $ 0.53 | |||
| Tape & Reel (TR) | 3000 | $ 0.49 | ||
| 6000 | $ 0.47 | |||
| 15000 | $ 0.45 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.86 | |
| 100 | $ 0.66 | |||
| 250 | $ 0.48 | |||
| 1000 | $ 0.35 | |||
Description
General part information
TPS60231 Series
The TPS60231 charge pump is optimized for white LED supplies in color display backlight applications. The device provides a constant current for each LED, which the initial value can be set by an external resistor. The supply voltage ranges from 2.7 V to 6.5 V and is ideally suited for all applications powered by a single LI-Ion battery cell or three to four NiCd, NiMH, or alkaline battery cells. Over an input voltage range from 3.1 V to 6.5 V, the device provides a high output current of up to 25 mA per LED with a total of 75 mA. High efficiency is achieved by utilizing a 1x/1.5x fractional conversion technique in combination with very low dropout current sources. In addition, the current controlled charge pump ensures low input current ripple and EMI. Only two external 1 µF and two 0.47 µF capacitors are required to build a complete small and low cost power supply solution. To reduce board space to a minimum, the device switches at 1 MHz operating frequency and is available in a small 16-pin QFN (RGT) package.
The TPS60231 charge pump is optimized for white LED supplies in color display backlight applications. The device provides a constant current for each LED, which the initial value can be set by an external resistor. The supply voltage ranges from 2.7 V to 6.5 V and is ideally suited for all applications powered by a single LI-Ion battery cell or three to four NiCd, NiMH, or alkaline battery cells. Over an input voltage range from 3.1 V to 6.5 V, the device provides a high output current of up to 25 mA per LED with a total of 75 mA. High efficiency is achieved by utilizing a 1x/1.5x fractional conversion technique in combination with very low dropout current sources. In addition, the current controlled charge pump ensures low input current ripple and EMI. Only two external 1 µF and two 0.47 µF capacitors are required to build a complete small and low cost power supply solution. To reduce board space to a minimum, the device switches at 1 MHz operating frequency and is available in a small 16-pin QFN (RGT) package.
Documents
Technical documentation and resources
