LM2681M6X/NOPB
Active20-MA SWITCHED CAPACITOR VOLTAGE DOUBLER
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LM2681M6X/NOPB
Active20-MA SWITCHED CAPACITOR VOLTAGE DOUBLER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2681M6X/NOPB |
|---|---|
| Frequency - Switching | 80 kHz |
| Function | Ratiometric |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | SOT-23-6 |
| Supplier Device Package | SOT-23-6 |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.5 V |
| Voltage - Output (Min/Fixed) | 2Vin |
| Voltage - Output (Min/Fixed) | Vin/2 |
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 | $ 1.10 | |
| Digi-Reel® | 1 | $ 1.10 | ||
| Tape & Reel (TR) | 3000 | $ 0.47 | ||
| 6000 | $ 0.44 | |||
| 15000 | $ 0.43 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.81 | |
| 100 | $ 0.63 | |||
| 250 | $ 0.46 | |||
| 1000 | $ 0.33 | |||
Description
General part information
LM2681 Series
The LM2681 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. Two low cost capacitors and a diode (needed during start-up) is used in this circuit to provide up to 20 mA of output current. The LM2681 can also work as a voltage divider to split a voltage in the range of +1.8V to +11V in half.
The LM2681 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 550 µA (operating efficiency greater than 90% with most loads) the LM2681 provides ideal performance for battery powered systems. The device is in a SOT-23, 6-lead package.
The LM2681 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. Two low cost capacitors and a diode (needed during start-up) is used in this circuit to provide up to 20 mA of output current. The LM2681 can also work as a voltage divider to split a voltage in the range of +1.8V to +11V in half.
Documents
Technical documentation and resources
