Power Management Switching Regulator SEPIC Regulators
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LT4363 - High Voltage Surge Stopper with Current Limit

LT1370 - 500kHz High Efficiency 6A Switching Regulator

Features

  • Faster Switching with Increased Efficiency
  • Uses Small Inductors: 4.7µH
  • All Surface Mount Components
  • Low Minimum Supply Voltage: 2.7V
  • Quiescent Current: 4.5mA Typ
  • Current Limited Power Switch: 6A
  • Regulates Positive or Negative Outputs
  • Shutdown Supply Current: 12µA Typ
  • Easy External Synchronization
  • Switch Resistance: 0.065Ω Typ

Typical Application

LT1370 Typical Application
LT1370 Typical Application

Description

The LT1370 is a monolithic high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 6A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry.

The LT1370 typically consumes only 4.5mA quiescent current and has higher efficiency than previous parts. High frequency switching allows for very small inductors to be used.

New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an external logic level source. A logic low on the Shutdown pin reduces supply current to 12µA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation techniques. Nonlinear error amplifier transconductance reduces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external components during overload conditions.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

DD-7, T7

LT1370 Package Drawing
LT1370 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1370CR DD PAK 7 C $7.40 $6.15 View
LT1370CR#PBF DD PAK 7 C $7.40 $6.15 View
LT1370CR#TR DD PAK 7 C $6.27 View
LT1370CR#TRPBF DD PAK 7 C $6.27 View
LT1370CT7 TO-220 7 C $7.25 $6.05 View
LT1370CT7#PBF TO-220 7 C $7.25 $6.05 View
LT1370HVCR DD PAK 7 C $8.45 $7.00 View
LT1370HVCR#PBF DD PAK 7 C $8.45 $7.00 View
LT1370HVCR#TR DD PAK 7 C $7.12 View
LT1370HVCR#TRPBF DD PAK 7 C $7.12 View
LT1370HVCT7 TO-220 7 C $8.30 $6.85 View
LT1370HVCT7#PBF TO-220 7 C $8.30 $6.85 View
LT1370HVIR DD PAK 7 I $10.10 $8.35 View
LT1370HVIR#PBF DD PAK 7 I $10.10 $8.35 View
LT1370HVIR#TR DD PAK 7 I $8.47 View
LT1370HVIR#TRPBF DD PAK 7 I $8.47 View
LT1370HVIT7 TO-220 7 I $9.95 $8.25 View
LT1370HVIT7#PBF TO-220 7 I $9.95 $8.25 View
LT1370IR DD PAK 7 I $8.90 $7.35 View
LT1370IR#PBF DD PAK 7 I $8.90 $7.35 View
LT1370IR#TR DD PAK 7 I $7.47 View
LT1370IR#TRPBF DD PAK 7 I $7.47 View
LT1370IT7 TO-220 7 I $8.75 $7.25 View
LT1370IT7#PBF TO-220 7 I $8.75 $7.25 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC185A LT1370CR | 5V or 12V OUTPUT BOOST CONVERTER, 2.7V $175.00
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Click here to view our complete list of demo boards

Applications

  • Boost Regulators
  • Laptop Computer Supplies
  • Multiple Output Flyback Supplies
  • Inverting Supplies

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LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

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Related models available in LTspice IV
LT1370
LT1370HV

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