ISL8540IVEZ
SWITCHING REGLTR, VOLTAGE-MODE
Pmic Voltage Regulators Dc Dc Switching Regulators
20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Obsolete
$5.62 / unit (market reference)
MOQ: 54 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | ISL8540IVEZ |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Topology | Buck |
| Voltage - Input (Min) | 9V |
| Voltage - Input (Max) | 40V |
| Voltage - Output | 1.21V |
| Current - Output | 2A |
| Frequency - Switching | 100kHz ~ 600kHz |
| Number of Outputs | 1 |
| Supplier Device Package | 20-HTSSOP |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
ISL8540IVEZ by Rochester Electronics, LLC is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 40V, output 1.21V. The 20-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 | 2A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 600kHz |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 40V |
| Voltage - Input (Min) | 9V |
| Voltage - Output (Max) | 35V |
| Voltage - Output (Min/Fixed) | 1.21V |
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