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High-reliability DC conversion for industrial and commercial use

ISO14001 ISO9001 DUNS

Brands: Analog Devices, Inc

Mfr.Part #: LT1111CS8

Datasheet: LT1111CS8 Datasheet (PDF)

Package/Case: SOP-8

Product Type: Voltage Regulators , DC DC Switching Regulators

RoHS Status:

Stock Condition: 2,176 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

Quick Quote

Please submit RFQ for LT1111CS8 or email to us: Email: [email protected], we will contact you within 12 hours.

LT1111CS8 General Description

LT1111CS8 is a voltage-controlled current source, which is a type of integrated circuit (IC) manufactured by Linear Technology, now part of Analog Devices.



  • Output current is adjustable up to 1.2A with an external resistor
  • Wide input voltage range from 2.5V to 18V
  • Adjustable output voltage with an external resistor
  • Can be used as a current limiter
  • Internal thermal limiting and short-circuit protection
  • Low dropout voltage: typically 1.2V at 1A load
  • Operating temperature range: -40°C to 85°C
  • Package type: 8-pin SOIC


  • Battery chargers
  • LED drivers
  • Motor control
  • Constant current sources for sensors or other electronic components
  • Electronic loads
  • High-side current sensing


Parameter Value Parameter Value
feature-type Non-Inverting|Inverting|Step Up|Step Down feature-isolation
feature-technology feature-process-technology
feature-output-type Fixed feature-switching-frequency-khz 88
feature-number-of-outputs 1 feature-output-voltage-v 5|12
feature-maximum-output-current-a feature-maximum-output-power-w
feature-minimum-input-voltage-v 2 feature-maximum-input-voltage-v 30
feature-typical-switch-current-a 0.4 feature-efficiency-
feature-packaging feature-rad-hard
feature-pin-count 8 feature-supplier-package SOIC N
feature-standard-package-name1 SO feature-cecc-qualified No
feature-esd-protection feature-escc-qualified
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc Yes feature-svhc-exceeds-threshold Yes
Product Category Switching Voltage Regulators RoHS No&nbsp-RoHS Version Available
Output Voltage Adjustable Output Current 800 mA
Input Voltage, Max 12 V Number of Outputs 1 Output
Topology Boost, Buck Package / Case SOIC-8
Mounting Style SMD/SMT Switching Frequency 72 kHz
Minimum Operating Temperature 0 C Maximum Operating Temperature + 70 C
Series LT1111 Input Voltage, Min 2 V
Brand Analog Devices Height 1.75 mm
Operating Supply Current 300 uA Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

Processing Time:Shipping fee depend on different zone and country.


Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Equivalent Parts

For the LT1111CS8 component, you may consider these replacement and alternative parts:

Part Number




Part Number :   MAX4624EZT+

Brands :  

Package :  

Description :  

Part Number :   LT3092EDD

Brands :  

Package :   DFN8

Description :   200mA 2-Terminal Programmable Current Source

Part Number :   MCP16331T-ADJE/MC

Brands :  

Package :  

Description :  

Part Number :   AD8033AKSZ-REEL7

Brands :  

Package :   SC70-5

Description :   Operational Amplifiers - Op Amps High-Speed

Part Number :   MAX4255ESD+

Brands :  

Package :  

Description :  

Part Number :   LT3080EDD#PBF

Brands :  

Package :   DFN-8

Description :   Adjustable 1.1A Single Resistor Low Dropout Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C

Part points

  • The LT1111CS8 chip is a synchronous buck converter integrated circuit (IC) commonly used for power supply applications. It operates as a step-down voltage regulator, providing a stable output voltage level from a higher input voltage source. The chip features a high switching frequency, enabling efficient power conversion and a small form factor. It is widely used in electronic devices that require precise and efficient power management.
  • Equivalent

    Alternative products for the LT1111CS8 chip include the LT1111CN8, LT1111IS8, and LT1111IS8-5, which are all part of Linear Technology's LT1111 family of high-efficiency step-up DC/DC converters.
  • Features

    The LT1111CS8 is a step-up DC/DC converter with an integrated power switch. It features a fixed frequency, adjustable current limit, low shutdown current, and low feedback voltage of 0.6V. This device is designed to provide a simple, efficient solution for boosting a lower voltage to a higher voltage.
  • Pinout

    The LT1111CS8 is a step-up DC-DC converter with a pin count of 8. Pin functions include VIN, SW, GND, SHDN, FB, EN, VOUT, and LX. VIN is the input voltage, SW is the switch node, GND is the ground, SHDN is the shutdown pin, FB is the feedback pin, EN is the enable pin, VOUT is the output voltage, and LX is the inductor connection.
  • Manufacturer

    The manufacturer of the LT1111CS8 is Linear Technology Corporation, a semiconductor company that specializes in designing, manufacturing, and marketing a wide range of analog integrated circuits.
  • Application Field

    The LT1111CS8 is a DC/DC converter that can be used in various application areas, including battery-operated devices, portable electronics, automotive systems, and industrial equipment. It is designed to convert higher voltage levels to lower regulated voltages, making it useful for powering low voltage ICs and other components of electronic circuits.
  • Package

    The LT1111CS8 chip is a surface mount package type with an 8-pin SOIC (Small Outline Integrated Circuit) package form. Its size is approximately 5.00mm x 4.00mm.

Datasheet PDF

Preliminary Specification LT1111CS8 PDF Download

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