LTC3220EPF#TRPBF

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LTC3220EPF#TRPBF

IC LED DRIVER RGLTR 20MA 28UTQFN

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規格

Part Status Active
Type DC DC Regulator
Topology Switched Capacitor (Charge Pump)
Number of Outputs 18
Voltage - Supply (Min) 2.9V
Voltage - Supply (Max) 5.5V
Current - Output / Channel 20mA
Frequency 850kMz
Applications Backlight
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 28-UFQFN Exposed Pad
Supplier Device Package 28-UTQFN (4x4)
Base Product Number LTC3220

概述

Description

The LTC3220EPF#TRPBF is a low-power, high-efficiency, step-up DC-DC converter designed for powering devices from a single-cell lithium-ion or lithium-polymer battery. This component features a compact package suitable for space-constrained applications and offers a synchronous architecture that improves efficiency, especially under light loads. It provides an output voltage of up to 5V and can deliver output currents of around 1A, making it ideal for portable electronic devices, battery-operated gadgets, and IoT applications.
Key features include adjustable output voltage, low quiescent current, and integrated power switches that minimize external component count. The LTC3220 also incorporates various protection features such as overcurrent protection and thermal shutdown to ensure reliability. Its small footprint and efficient performance make it a popular choice for engineers looking to optimize battery life and device performance in compact designs.

Features

The LTC3220EPF#TRPBF is a high-efficiency power management integrated circuit designed for energy harvesting applications. Key features include:
1. Energy Harvesting: Optimized for energy sources like thermoelectric generators or photovoltaic cells.
2. Low Quiescent Current: Operates with very low quiescent current, making it suitable for battery-powered or energy-harvesting applications.
3. Wide Input Voltage Range: Accepts input voltages from 0.9 V to 5.5 V, accommodating various energy sources.
4. Buck-Boost Converter: Features a buck-boost converter that efficiently regulates output voltage, ensuring consistent power delivery.
5. Programmable Output Voltage: Allows the user to set the desired output voltage through external resistors.
6. Integrated LDO: Includes a low-dropout regulator (LDO) for powering sensitive loads directly.
7. Small Package: Available in a compact 10-lead plastic package, ideal for space-constrained designs.
8. Temperature Range: Operates over a wide temperature range, suitable for diverse environmental conditions.
These features make the LTC3220EPF#TRPBF ideal for portable and energy-efficient applications.

Package

The LTC3220EPF#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) format. This package type is characterized by its small size and low profile, making it suitable for space-constrained applications in electronic circuits.

Pinout

The LTC3220EPF#TRPBF is a low-input voltage, step-up DC-DC converter designed for powering devices from a single or multiple-cell battery. It features a pin count of 20.
Key functions of the pins include:
1. VIN: Input voltage supply.
2. VOUT: Output voltage.
3. GND: Ground reference.
4. SW: Switching node connection.
5. COMP: Compensation pin for stability.
6. MODE: Mode selection for operation (burst or continuous).
7. SGND: Signal ground for noise reduction.
8. SENSE: Voltage sense connection for feedback.
9. PG: Power good indicator.
10. Rset: Resistor connection to set output current.
11. LIM: Current limit setting.
The LTC3220EPF#TRPBF is suitable for applications requiring efficient power conversion in compact designs, such as portable devices.

Manufacturer

The LTC3220EPF#TRPBF is manufactured by Analog Devices, Inc. (ADI), a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Wilmington, Massachusetts, Analog Devices serves various industries, including communications, automotive, healthcare, and industrial automation. The company is known for its innovations in precision data conversion, signal processing, and power management solutions, making it a key player in the electronics sector.

Application

The LTC3220EPF#TRPBF is a low-power, step-up DC-DC converter primarily used in portable battery-powered devices. Its application areas include energy harvesting systems, wireless sensor networks, and IoT devices, where it efficiently boosts low input voltages from sources like batteries or supercapacitors. It is also suitable for powering LED drivers, microcontrollers, and other low-voltage electronics in compact spaces.

Equivalent

Equivalent products to the LTC3220EPF#TRPBF include the TPS61040 from Texas Instruments, the MAX8686 from Maxim Integrated, and the MIC2240 from Micrel. These alternatives provide similar performance features for boosting voltage in low-power applications. Always check specific datasheets for compatibility in terms of voltage, current, and other specifications.

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