LTC1503IS8-1.8#PBF
ActiveHIGH EFFICIENCY INDUCTORLESS STEP-DOWN DC/DC CONVERTER
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LTC1503IS8-1.8#PBF
ActiveHIGH EFFICIENCY INDUCTORLESS STEP-DOWN DC/DC CONVERTER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC1503IS8-1.8#PBF |
|---|---|
| Current - Output | 100 mA |
| Frequency - Switching | 600 kHz |
| 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 | 1.81 mOhm |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SO |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 6 V |
| Voltage - Input (Min) [Min] | 2.4 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 | Tube | 100 | $ 4.68 | |
Description
General part information
LTC1503 Series
The LTC1503-1.8/LTC1503-2 are switched capacitor step-down DC/DC converters that produce a regulated output from a 2.4V to 6V input. The parts use switched capacitor fractional conversion to achieve high efficiency over the entire input range. No inductors are required. Internal circuitry controls the step-down conversion ratio to optimize efficiency as the input voltage and load conditions vary. Typical efficiency is 25% higher than that of a low dropout (LDO) linear regulator.Regulation is achieved by sensing the output voltage and enabling the internal switching network as needed to maintain a fixed output voltage. This method of regulation enables the parts to achieve high efficiency at extremely light loads. Low operating current (25µA with no load, 5µA in shutdown) and low external parts count (two 1µF flying capacitors and two 10µF bypass capacitors) make the LTC1503-1.8/LTC1503-2 ideally suited for space constrained battery-powered applications. The parts are fully short-circuit and over temperature protected.The LTC1503-1.8/LTC1503-2 are available in 8-pin MSOP and SO packages.ApplicationsCellular PhonesHandheld ComputersSmart Card ReadersLow Power DSP SuppliesPortable Electronic EquipmentHandheld Medical Instruments
Documents
Technical documentation and resources
