LTC3421EUF
LTC3421 - MICROPOWER SYNCHRONOUS
Pmic Voltage Regulators Dc Dc Switching Regulators
24-WFQFN Exposed Pad
Obsolete
$13.33 / unit (market reference)
MOQ: 23 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | LTC3421EUF |
| Package / Case | 24-WFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Topology | Boost |
| Voltage - Input (Min) | 0.5V |
| Voltage - Input (Max) | 4.5V |
| Voltage - Output | 2.4V |
| Current - Output | 1A (Switch) |
| Frequency - Switching | 100kHz ~ 3MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 24-QFN (4x4) |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
LTC3421EUF by Rochester Electronics, LLC is a Boost IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 4.5V, output 2.4V. The 24-WFQFN 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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Alternatives & Replacements
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IC REG BUCK ADJUSTABLE 5A 24QFN
LTC3118EUFD#PBF
IC REG BCK BST ADJ 2A 24QFN
LM3310SQ
SWITCHING REG, CURRENT-MODE, 0.1
LTC3615EUF-1#PBF
IC REG BUCK ADJ 3A DL 24QFN
LTC3605EUF#PBF
IC REG BUCK ADJUSTABLE 5A 24QFN
LTC3520EUF#TRPBF
IC REG BUCK BST ADJ DL 24QFN
All Technical Specifications
| Function | Step-Up |
| Topology | Boost |
| Output Type | Adjustable |
| Current - Output | 1A (Switch) |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 3MHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 4.5V |
| Voltage - Input (Min) | 0.5V |
| Voltage - Output (Max) | 5.25V |
| Voltage - Output (Min/Fixed) | 2.4V |
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