LTC3025

Features: `Wide Input Voltage Range: 0.9V to 5.5V`Stable with Ceramic Capacitors`Very Low Dropout: 45mV at 300mA`Adjustable Output Range: 0.4V to 3.6V`±2% Voltage Accuracy over Temperature Supply Load`Low Noise: 80VRMS (10Hz to 100kHz)`BIAS Voltage Range: 2.5V to 5.5V`Fast Transient Recovery`Shutd...

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SeekIC No. : 004402164 Detail

LTC3025: Features: `Wide Input Voltage Range: 0.9V to 5.5V`Stable with Ceramic Capacitors`Very Low Dropout: 45mV at 300mA`Adjustable Output Range: 0.4V to 3.6V`±2% Voltage Accuracy over Temperature Supply Lo...

floor Price/Ceiling Price

Part Number:
LTC3025
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/20

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Product Details

Description



Features:

`Wide Input Voltage Range: 0.9V to 5.5V
`Stable with Ceramic Capacitors
`Very Low Dropout: 45mV at 300mA
`Adjustable Output Range: 0.4V to 3.6V
`±2% Voltage Accuracy over Temperature Supply Load
`Low Noise: 80VRMS (10Hz to 100kHz)
`BIAS Voltage Range: 2.5V to 5.5V
`Fast Transient Recovery
`Shutdown Disconnects Load from VIN and VBIAS
`Low Operating Current: IIN = 4A, IBIAS = 50A Typ
`Low Shutdown Current: IIN = 1A, IBIAS = 0.01A Typ
`Output Current Limit
`Thermal Overload Protection
`Available in 6-Lead (2mm * 2mm) DFN Package



Application

·Low Power Handheld Devices
·Low Voltage Logic Supplies
·DSP Power Supplies
·Cellular Phones
·Portable Electronic Equipment
·Handheld Medical Instruments
·Post Regulator for Switching Supply Noise Rejection



Pinout

  Connection Diagram


Specifications

VBIAS, VIN to GND ..................................... 0.3V to 6V
SHDN to GND ............................................. 0.3V to 6V
ADJ to GND ................................................ 0.3V to 6V
VOUT .....................................0.3V to VIN + 0.3V or 6V
Operating Junction Temperature Range
(Note 3) ............................................ 40°C to 125°C
Storage Temperature Range .............65°C to 125°C
Output Short-Circuit Duration ........................ Indefinite



Description

LTC®3025 is a micropower, VLDOTM (very low dropout) linear regulator which operates from input voltages as low as 0.9V. The device is capable of supplying 300mA of output current with a typical dropout voltage of only 45mV. A BIAS supply is required to run the internal reference and LDO circuitry while output current comes directly from the IN supply for high efficiency regulation. The low 0.4V internal reference voltage allows the LTC3025 output to b e programmed to much lower voltages than available in common LDOs (range of 0.4V to 3.6V). The output voltage is programmed via two ultrasmall SMD resistors.

The LTC3025's low quiescent current makes it an ideal choice for use in battery-powered systems. For 3-cell NiMH and single cell Li-Ion applications, the BIAS voltage can be supplied directly from the battery while the input can come from a high efficiency buck regulator, providing a high efficiency, low noise output.

Other features include high output voltage accuracy, excellent transient response, stability with ultralow ESR ceramic capacitors as small as 1F, short-circu it and thermal overload protection and output current limiting. The LTC3025 is available in a tiny, low profile (0.75mm) 6-lead DFN (2mm * 2mm) package.




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