LT1940LEFE#PBF
IC REG BUCK ADJ 1.4A DL 16TSSOP
Pmic Voltage Regulators Dc Dc Switching Regulators
16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Active
$7.44 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Analog Devices Inc. |
| Model | LT1940LEFE#PBF |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Topology | Buck |
| Voltage - Input (Min) | 3.6V |
| Voltage - Input (Max) | 7V |
| Voltage - Output | 1.25V |
| Current - Output | 1.4A |
| Frequency - Switching | 1.1MHz |
| Number of Outputs | 2 |
| Supplier Device Package | 16-TSSOP-EP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LT1940LEFE#PBF by Analog Devices Inc. is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 7V, output 1.25V. The 16-TSSOP (0.173", 4.40mm Width) Exposed Pad package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Adjustable |
| Current - Output | 1.4A |
| Number of Outputs | 2 |
| Output Configuration | Positive |
| Frequency - Switching | 1.1MHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 7V |
| Voltage - Input (Min) | 3.6V |
| Voltage - Output (Max) | 6.16V |
| Voltage - Output (Min/Fixed) | 1.25V |
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