LTC3538EDCB#TRMPBF
ActiveDC-DC SWITCHING SYNCHRONOUS BUCK-BOOST REGULATOR, ADJUSTABLE, 2.4 TO 5.5V IN, 1.8 TO 5.25V/0.8A OUT
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LTC3538EDCB#TRMPBF
ActiveDC-DC SWITCHING SYNCHRONOUS BUCK-BOOST REGULATOR, ADJUSTABLE, 2.4 TO 5.5V IN, 1.8 TO 5.25V/0.8A OUT
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3538EDCB#TRMPBF |
|---|---|
| Current - Output | 800 mA |
| Frequency - Switching | 1 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 | Positive |
| Output Type | Adjustable |
| Package / Case | 8-WFDFN Exposed Pad |
| Supplier Device Package | 8-DFN (2x3) |
| Synchronous Rectifier | True |
| Topology | Buck-Boost |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.4 V |
| Voltage - Output (Max) [Max] | 5.25 V |
| Voltage - Output (Min/Fixed) | 1.8 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 | $ 9.14 | |
| 10 | $ 6.32 | |||
| 25 | $ 5.59 | |||
| 100 | $ 4.77 | |||
| 250 | $ 4.38 | |||
| Digi-Reel® | 1 | $ 9.14 | ||
| 10 | $ 6.32 | |||
| 25 | $ 5.59 | |||
| 100 | $ 4.77 | |||
| 250 | $ 4.38 | |||
| Tape & Reel (TR) | 500 | $ 4.14 | ||
| 1000 | $ 3.94 | |||
| 1500 | $ 3.84 | |||
| 2500 | $ 3.83 | |||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 8.08 | |
| 10 | $ 5.87 | |||
| 25 | $ 5.15 | |||
| 50 | $ 4.74 | |||
| 100 | $ 4.33 | |||
| 250 | $ 4.03 | |||
| 500 | $ 3.83 | |||
Description
General part information
LTC3538 Series
The LTC3538 is a highly efficient, low noise, buck-boost DC/DC converter that operates from input voltages above, below, and equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single Lithium Ion or multicell Alkaline or NiMH applications where the output voltage is within the battery voltage range.The LTC3538 is suited for use in Micro Hard Disk Drive (µHDD) applications with its 800mA current capability. Burst Mode®operation provides high efficiency at light loads.The LTC3538 includes two 0.17Ω N-channel and two 0.2Ω P-channel MOSFET switches. Operating frequency is internally set to 1MHz to minimize solution footprint while maximizing efficiency.Other features include <5µA shutdown current, internal soft-start, short circuit protection and thermal shutdown. The LTC3538 is available in a low profile (0.75mm), thermally enhanced 8-lead (2mm x 3mm) DFN package.ApplicationsMiniature Hard Disk DrivesMP3 PlayersDigital CamerasCellular HandsetsPDAs, Handheld PCGPS Receivers
Documents
Technical documentation and resources