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LT3503EDCB#TRPBF

Name: LT3503EDCB#TRPBF
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 1A 6DFN

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仕様

Part Status	Active
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	3.6V
Voltage - Input (Max)	20V
Voltage - Output (Min/Fixed)	0.78V
Voltage - Output (Max)	16.2V
Current - Output	1A
Frequency - Switching	2.2MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	6-WFDFN Exposed Pad
Supplier Device Package	6-DFN (2x3)
Base Product Number	LT3503

概要

Description

The LT3503EDCB#TRPBF is a high-performance, low-dropout (LDO) linear voltage regulator from Analog Devices, specifically designed for powering sensitive analog circuits. It features a wide input voltage range, typically from 2.5V to 15V, and can output voltages as low as 1.2V with a maximum output current of up to 1A. The device is known for its low quiescent current, making it suitable for battery-powered applications.
Key features include excellent line and load regulation, low output noise, and the ability to operate with low dropout voltage. It also provides built-in protection features such as thermal shutdown and current limiting. The LT3503EDCB#TRPBF is packaged in a compact 5-lead SOT-23 package, which is ideal for space-constrained applications.
Overall, this LDO is suitable for various applications, including mobile devices, portable electronics, and precision analog circuitry, where efficient power management is crucial.

Features

The LT3503EDCB#TRPBF is a high-performance, low-dropout (LDO) linear voltage regulator designed for various applications. Key features include:
1. Input Voltage Range: Supports input voltages up to 15V.
2. Output Current: Delivers up to 1.5A of output current.
3. Low Dropout Voltage: Provides low dropout voltage (typically 350mV at 1.5A), allowing operation with minimal headroom.
4. Adjustable Output Voltage: Offers adjustable output voltages from 1.2V to 12V via external resistors.
5. Power Efficiency: High power supply rejection ratio (PSRR) and low quiescent current enhance efficiency.
6. Thermal Protection: Integrated thermal shutdown and current limiting features for safe operation.
7. Package: Available in a compact 8-lead SOIC package, facilitating space-constrained designs.
Overall, the LT3503EDCB#TRPBF is suitable for powering microcontrollers, RF circuits, and other sensitive analog devices in portable and battery-powered applications.

Package

The LT3503EDCB#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) with a lead pitch of 0.65 mm.

Pinout

The LT3503EDCB#TRPBF is a high-voltage step-down regulator from Analog Devices. It comes in a 16-lead TSSOP package. The pin count is 16.
Here’s a concise overview of its pin functions:
1. VIN: Input voltage supply.
2. SW: Switch node, connects to the inductor.
3. GND: Ground reference.
4. COMP: Compensation node for stability.
5. FB: Feedback voltage input for regulation.
6. VOUT: Output voltage.
7. SHDN: Shutdown control pin.
8. Rset: Resistor connection for setting frequency.
9. PG: Power good indicator.
10. CSN/ CSP: Current sense inputs.
11. SS/RT: Soft start and timing resistor connection.
12. NC: No connect (not internally connected).
13. VCC: Internal supply voltage.
14. ILIM: Current limit setting input.
The LT3503 is designed for high efficiency and low noise, making it suitable for various applications.

Manufacturer

The manufacturer of the LT3503EDCB#TRPBF is Analog Devices, Inc. Analog Devices is a global technology company that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). They serve a variety of industries, including telecommunications, automotive, industrial automation, healthcare, and consumer electronics. Analog Devices is known for its innovation in signal processing technologies, providing solutions for data acquisition, power management, and communication applications. The company is headquartered in Norwood, Massachusetts, and is recognized for its contributions to the semiconductor industry, particularly in enabling high-precision, high-efficiency electronic systems.

Application

The LT3503EDCB#TRPBF is a high-performance DC-DC step-down (buck) regulator primarily used in applications such as battery-powered devices, point-of-load power supplies, and portable electronics. Its efficiency and low quiescent current make it suitable for powering microcontrollers, sensors, and RF devices in industrial, automotive, and consumer electronics. Additionally, it is applicable in telecommunications and digital signal processing systems where stable voltage regulation is critical.

Equivalent

The LT3503EDCB#TRPBF is a step-down regulator from Analog Devices. Equivalent products include the LM2596 (Texas Instruments), TPS563202 (Texas Instruments), and MIC2941 (Microchip). These alternatives may vary in specifications such as input voltage range, output current, and efficiency, so it's essential to review the datasheets for compatibility with your application.