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LM27762DSSR
+NomenclatureIC REG CHARGE PUMP ADJ DL 12WSON
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FabricantTexas Instruments
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Pièce fabricant #LM27762DSSR
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Package WFDFN-12
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En stock1557
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive and Negative (Dual Rail) |
| Topology | Charge Pump |
| Output Type | Adjustable |
| Number of Outputs | 2 - Dual |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | -5V, 1.5V |
| Voltage - Output (Max) | -1.5V, 5V |
| Current - Output | 250mA |
| Frequency - Switching | 1.7MHz ~ 2.3MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the LM27762DSSR include a high-efficiency charge pump, low quiescent current, and low noise output, making it suitable for battery-powered or noise-sensitive applications. It also incorporates an internal soft-start to minimize inrush current, as well as built-in thermal shutdown and short-circuit protection to enhance reliability and safety. The device comes in a compact, space-saving package, ideal for portable or space-constrained designs. Its typical applications include powering operational amplifiers, DACs, and other mixed-signal circuits requiring low noise and dual supply voltages.
Equivalent
Features
1. Dual Output: It provides a positive output of 2.5V to 5.5V and a negative output of -1.5V to -5.5V.
2. High Efficiency: The device offers high efficiency of up to 85%, ideal for battery-powered applications.
3. Low Noise: It includes low-noise output voltage regulation with integrated caps, minimizing the need for external capacitors.
4. Current Capability: The positive output supplies up to 250 mA, while the negative output can supply up to 100 mA.
5. Compact Size: Housed in a small WSON package, it’s suitable for space-constrained applications.
6. Protection Features: It incorporates over-current, thermal shutdown, and short-circuit protection for reliability and safety.
7. Low Quiescent Current: With a low quiescent current of 60 µA, the device is well-suited for low-power applications.
These features make the LM27762DSSR suitable for portable electronics, sensors, and other circuits requiring dual polarities.
Pinout
1. Vin: Supply voltage input for the device.
2. Vout1: Positive output voltage.
3. Vout2: Negative output voltage.
4. C1+ and C1-: Charge pump flying capacitor connection pins.
5. C2+ and C2-: Additional charge pump capacitor connections.
6. Pgnd: Power ground pin for the output.
7. Agnd: Analog ground pin for the device.
8. EN1: Enable pin for the positive output.
9. EN2: Enable pin for the negative output.
This configuration allows the LM27762DSSR to generate both positive and negative voltages from a single input, making it suitable for applications that require dual supply voltages.