LTC1503CMS8-1.8#TRPBF
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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
ECAD Model:
Datasheet:
LTC1503CMS8-1.8#TRPBF
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  • 1

    $3.6982

    $3.70

  • 200

    $1.4308

    $286.16

  • 500

    $1.3815

    $690.75

  • 1000

    $1.3568

    $1356.80

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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
Specifications
Linear Technology LTC1503CMS8-1.8#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology LTC1503CMS8-1.8#TRPBF.
  • Lifecycle Status
    PRODUCTION (Last Updated: 2 weeks ago)
  • Factory Lead Time
    8 Weeks
  • Mounting Type
    Surface Mount
  • Package / Case
    8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
  • Surface Mount
    YES
  • Number of Pins
    8
  • Operating Temperature
    -40°C~85°C TA
  • Packaging
    Tape & Reel (TR)
  • JESD-609 Code
    e3
  • Part Status
    Active
  • Moisture Sensitivity Level (MSL)
    1 (Unlimited)
  • Number of Terminations
    8
  • ECCN Code
    EAR99
  • Terminal Finish
    Matte Tin (Sn)
  • Subcategory
    Other Analog ICs
  • Technology
    CMOS
  • Terminal Position
    DUAL
  • Terminal Form
    GULL WING
  • Peak Reflow Temperature (Cel)
    260
  • Terminal Pitch
    0.65mm
  • Time@Peak Reflow Temperature-Max (s)
    30
  • Base Part Number
    LTC1503
  • Function
    Step-Down
  • Number of Outputs
    1
  • Voltage - Input (Max)
    6V
  • Output Voltage
    1.8V
  • Output Type
    Fixed
  • Max Output Current
    100mA
  • Trim/Adjustable Output
    NO
  • Max Supply Voltage
    6V
  • Min Supply Voltage
    2.4V
  • Analog IC - Other Type
    DC-DC REGULATED POWER SUPPLY MODULE
  • Operating Supply Current
    25μA
  • Output Configuration
    Positive
  • Topology
    Charge Pump
  • Frequency - Switching
    600kHz
  • Synchronous Rectifier
    No
  • Length
    3mm
  • Width
    3mm
  • RoHS Status
    ROHS3 Compliant
  • Lead Free
    Lead Free
Certification
  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS

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