Power Management LDO Linear Regulators Positive Linear Regulators (LDO)

LTC2974 - 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement

LTC3026 - 1.5A Low Input Voltage VLDO Linear Regulator

Features

  • Input Voltage Range:
    1.14V to 3.5V (with Boost Enabled)
    1.14V to 5.5V (with External 5V Boost)
  • Low Dropout Voltage: 100mV at IOUT = 1.5A
  • Adjustable Output Range: 0.4V to 2.6V
  • Output Current: Up to 1.5A
  • Excellent Supply Rejection Even Near Dropout
  • Shutdown Disconnects Load from VIN and VBST
  • Low Operating Current: IIN = 950µA at VIN = 1.5V
  • Low Shutdown Current:
    IIN < 1µA (Typ), IBST = 0.1µA (Typ)
  • Stable with 10µF or Greater Ceramic Capacitors
  • Short-Circuit, Reverse Current Protected
  • Overtemperature Protected
  • Available in 10-Lead MSOP and 10-Lead (3mm × 3mm) DFN Packages

Typical Application

LTC3026 Typical Application
LTC3026 Typical Application

Description

The LTC3026 is a very low dropout (VLDO™) linear regulator that can operate at input voltages down to 1.14V. The device is capable of supplying 1.5A of output current with a typical dropout voltage of only 100mV. To allow operation at low input voltages the LTC3026 includes a boost converter that provides the necessary headroom for the internal LDO circuitry.

Output current comes directly from the input supply to maximize efficiency. The boost converter requires only a small chip inductor and ceramic capacitor for operation. Additionally, the boosted output voltage of one LTC3026 can supply the boost voltage for other LTC3026s, thus requiring a single inductor for multiple LDOs. A user supplied boost voltage can be used eliminating the need for an inductor altogether.

The LTC3026 regulator is stable with 10μF or greater ceramic output capacitors. The device has a low 0.4V reference voltage which is used to program the output voltage via two external resistors. The device also has internal current limit, overtemperature shutdown, and reverse output current protection. The LTC3026 is available in a small 10-lead MSOP or low profile (0.75mm) 10-lead 3mm × 3mm DFN package.

Packaging

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

DFN-10, MS-10

LTC3026 Package Drawing
LTC3026 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC3026EDD DFN 10 E $3.14 $2.20 View
LTC3026EDD#PBF DFN 10 E $3.14 $2.20 View
LTC3026EDD#TR DFN 10 E $2.30 View
LTC3026EDD#TRPBF DFN 10 E $2.30 View
LTC3026EDD-1#PBF DFN 10 E $3.14 $2.20 View
LTC3026EDD-1#TRPBF DFN 10 E $2.26 View
LTC3026EMSE MSOP 10 E $3.14 $2.20 View
LTC3026EMSE#PBF MSOP 10 E $3.14 $2.20 View
LTC3026EMSE#TR MSOP 10 E $2.26 View
LTC3026EMSE#TRPBF MSOP 10 E $2.26 View
LTC3026EMSE-1#PBF MSOP 10 E $3.14 $2.20 View
LTC3026EMSE-1#TRPBF MSOP 10 E $2.26 View
LTC3026IDD#PBF DFN 10 I $3.46 $2.42 View
LTC3026IDD#TRPBF DFN 10 I $2.48 View
LTC3026IDD-1#PBF DFN 10 I $3.46 $2.42 View
LTC3026IDD-1#TRPBF DFN 10 I $2.48 View
LTC3026IMSE-1#PBF MSOP 10 I $3.46 $2.42 View
LTC3026IMSE-1#TRPBF MSOP 10 I $2.48 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
DC833A LTC3026EDD | Low Input Voltage VLDO Linear Regulator, Vin=1.14V-5.5V(Ext), Vin=1.14V-3.5V(Boost), Iout = 1.5A(max) $75.00
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Click here to view our complete list of demo boards

Applications

  • High Efficiency Linear Regulator
  • Post Regulator for Switching Supplies
  • Microprocessor Supply

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Related models available in LTspice IV
LTC3026
LTC3026-1

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