LTC3542EDC#TRPBF
ActiveCONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.6V TO 5.5V 0.5A 6-PIN DFN EP T/R
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LTC3542EDC#TRPBF
ActiveCONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.6V TO 5.5V 0.5A 6-PIN DFN EP T/R
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3542EDC#TRPBF |
|---|---|
| Current - Output | 500 mA |
| Frequency - Switching | 2.25 MHz |
| Function | 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 | 6-WFDFN Exposed Pad |
| Supplier Device Package | 6-DFN (2x2) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.5 V |
| Voltage - Output (Max) [Max] | 5.5 V |
| Voltage - Output (Min/Fixed) | 0.6 V |
LTC3542 Series
500mA, 2.25MHz Synchronous Step-Down DC/DC Converter
| Part | Operating Temperature [Max] | Operating Temperature [Min] | Output Type | Supplier Device Package | Voltage - Input (Max) [Max] | Synchronous Rectifier | Frequency - Switching | Current - Output | Function | Topology | Voltage - Output (Min/Fixed) | Package / Case | Number of Outputs | Output Configuration | Voltage - Input (Min) [Min] | Voltage - Output (Max) [Max] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 85 °C | -40 °C | Adjustable | 6-DFN (2x2) | 5.5 V | 2.25 MHz | 500 mA | Step-Down | Buck | 0.6 V | 6-WFDFN Exposed Pad | 1 | Positive | 2.5 V | 5.5 V | Surface Mount | |
Analog Devices | 125 ¯C | -40 °C | Adjustable | TSOT-23-6 | 5.5 V | 2.25 MHz | 500 mA | Step-Down | Buck | 0.6 V | SOT-23-6 Thin TSOT-23-6 | 1 | Positive | 2.5 V | 5.5 V | Surface Mount | |
Analog Devices | 125 ¯C | -40 °C | Adjustable | TSOT-23-6 | 5.5 V | 2.25 MHz | 500 mA | Step-Down | Buck | 0.6 V | SOT-23-6 Thin TSOT-23-6 | 1 | Positive | 2.5 V | 5.5 V | Surface Mount |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2500 | $ 2.46 | |
Description
General part information
LTC3542 Series
The LTC3542 is a high efficiency monolithic synchronous buck converter using a constant frequency, current mode architecture. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3542 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. The output voltage is adjustable from 0.6V to VIN. Internal power switches are optimized to provide high efficiency and eliminate the need for an external Schottky diode.Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors, and it can synchronize to an external clock signal with a frequency range of 1MHz to 3MHz through the MODE/ SYNC pin. The LTC3542 is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint.The LTC3542 can be configured for the power saving Burst Mode®Operation. For reduced noise and RF interference, the MODE/SYNC pin can be configured for pulse skipping operation.ApplicationsCellular TelephonesWireless and DSL ModemsDigital CamerasMP3 PlayersPDAs and Other Handheld Devices
Documents
Technical documentation and resources