LM27761DSGR
ActiveLOW-NOISE REGULATED INVERTER WITH INTEGRATED LDO
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LM27761DSGR
ActiveLOW-NOISE REGULATED INVERTER WITH INTEGRATED LDO
Technical Specifications
Parameters and characteristics for this part
| Specification | LM27761DSGR |
|---|---|
| Current - Output | 250 mA |
| Frequency - Switching | 2 MHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Negative |
| Output Type | Adjustable |
| Package / Case | 8-WFDFN Exposed Pad |
| Supplier Device Package | 8-WSON (2x2) |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.7 V |
| Voltage - Output (Max) [Max] | -5 V |
| Voltage - Output (Min/Fixed) | -1.5 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 | $ 1.60 | |
| 10 | $ 1.43 | |||
| 25 | $ 1.36 | |||
| 100 | $ 1.11 | |||
| 250 | $ 1.04 | |||
| 500 | $ 0.92 | |||
| 1000 | $ 0.73 | |||
| Digi-Reel® | 1 | $ 1.60 | ||
| 10 | $ 1.43 | |||
| 25 | $ 1.36 | |||
| 100 | $ 1.11 | |||
| 250 | $ 1.04 | |||
| 500 | $ 0.92 | |||
| 1000 | $ 0.73 | |||
| Tape & Reel (TR) | 3000 | $ 0.68 | ||
| 6000 | $ 0.64 | |||
| 15000 | $ 0.62 | |||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 1.75 | |
| 10 | $ 1.66 | |||
| 25 | $ 1.58 | |||
| 50 | $ 1.52 | |||
| 100 | $ 1.45 | |||
| 250 | $ 1.40 | |||
| 500 | $ 1.37 | |||
| 1000 | $ 1.35 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.19 | |
| 100 | $ 0.91 | |||
| 250 | $ 0.67 | |||
| 1000 | $ 0.48 | |||
Description
General part information
LM27761 Series
The LM27761 low-noise regulated switched-capacitor voltage inverter delivers a very low-noise adjustable output for an input voltage in the range of 2.7 V to 5.5 V. Four low-cost capacitors are used in the application solution to provide up to 250 mA of output current. The regulated output for the device is adjustable between −1.5 V and −5 V. The LM27761 operates at 2-MHz (typical) switching frequency to reduce output resistance and voltage ripple. With an operating current of only 370 µA (charge-pump power efficiency greater than 80% with most loads) and 7-µA typical shutdown current, the LM27761 provides ideal performance when driving power amplifiers, DAC bias rails, and other high-current, low-noise voltage applications.
The LM27761 low-noise regulated switched-capacitor voltage inverter delivers a very low-noise adjustable output for an input voltage in the range of 2.7 V to 5.5 V. Four low-cost capacitors are used in the application solution to provide up to 250 mA of output current. The regulated output for the device is adjustable between −1.5 V and −5 V. The LM27761 operates at 2-MHz (typical) switching frequency to reduce output resistance and voltage ripple. With an operating current of only 370 µA (charge-pump power efficiency greater than 80% with most loads) and 7-µA typical shutdown current, the LM27761 provides ideal performance when driving power amplifiers, DAC bias rails, and other high-current, low-noise voltage applications.
Documents
Technical documentation and resources
