Linear Technology LTC1503CMS8-1.8#TRPBF
Part Number:
- LTC1503CMS8-1.8#TRPBF
Manufacturer:
- Linear Technology
Ventron No:
- 3296400-LTC1503CMS8-1.8#TRPBF
Description:
- IC REG SWITCHD CAP 1.8V 8MSOP
Datasheet:
- LTC1503CMS8-1.8#TRPBF
Payment:
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Part Overview
Description
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. They use switched capacitor fractional conversion to achieve high efficiency over the entire input range, with no inductors 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 10uF bypass capacitors) make the LTC1503-1.8/LTC1503-2 ideally suited for space constrained battery-powered applications. The parts are fully short-circuit and overtemperature protected.
Features
High efficiency inductorless
Input voltage range: 2.4V to 6V
Fixed output voltages: 1.8V ±4%, 2V ±4%
Output current: Up to 100mA
No inductors
Typical efficiency 25% higher than LDOs
Low operating current: 25μA
Low shutdown current: 5μA
600kHz switching frequency
Shutdown disconnects load from VIN
Soft-start limits inrush current at turn-on
Short-circuit and overtemperature protected
Available in 8-pin MSOP and SO packages
Applications
Cellular phones
Handheld computers
Smart card readers
Low power DSP supplies
Portable electronic equipment
Handheld medical instruments
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. They use switched capacitor fractional conversion to achieve high efficiency over the entire input range, with no inductors 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 10uF bypass capacitors) make the LTC1503-1.8/LTC1503-2 ideally suited for space constrained battery-powered applications. The parts are fully short-circuit and overtemperature protected.
Features
High efficiency inductorless
Input voltage range: 2.4V to 6V
Fixed output voltages: 1.8V ±4%, 2V ±4%
Output current: Up to 100mA
No inductors
Typical efficiency 25% higher than LDOs
Low operating current: 25μA
Low shutdown current: 5μA
600kHz switching frequency
Shutdown disconnects load from VIN
Soft-start limits inrush current at turn-on
Short-circuit and overtemperature protected
Available in 8-pin MSOP and SO packages
Applications
Cellular phones
Handheld computers
Smart card readers
Low power DSP supplies
Portable electronic equipment
Handheld medical instruments
Specifications
Linear Technology LTC1503CMS8-1.8#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology LTC1503CMS8-1.8#TRPBF.
- Lifecycle StatusPRODUCTION (Last Updated: 2 weeks ago)
- Factory Lead Time8 Weeks
- Mounting TypeSurface Mount
- Package / Case8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Surface MountYES
- Number of Pins8
- Operating Temperature-40°C~85°C TA
- PackagingTape & Reel (TR)
- JESD-609 Codee3
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- SubcategoryOther Analog ICs
- TechnologyCMOS
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Terminal Pitch0.65mm
- Time@Peak Reflow Temperature-Max (s)30
- Base Part NumberLTC1503
- FunctionStep-Down
- Number of Outputs1
- Voltage - Input (Max)6V
- Output Voltage1.8V
- Output TypeFixed
- Max Output Current100mA
- Trim/Adjustable OutputNO
- Max Supply Voltage6V
- Min Supply Voltage2.4V
- Analog IC - Other TypeDC-DC REGULATED POWER SUPPLY MODULE
- Operating Supply Current25μA
- Output ConfigurationPositive
- TopologyCharge Pump
- Frequency - Switching600kHz
- Synchronous RectifierNo
- Length3mm
- Width3mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
Certification
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