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MAX1684EEE+

Name: MAX1684EEE+
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ/1.25V 1A 16QSOP

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Mfr。パート #MAX1684EEE+
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データシート
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仕様

Part Status	Obsolete
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable (Fixed)
Number of Outputs	1
Voltage - Input (Min)	2.7V
Voltage - Input (Max)	14V
Voltage - Output (Min/Fixed)	1.25V (3.3V)
Voltage - Output (Max)	14V
Current - Output	1A
Frequency - Switching	300kHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	16-SSOP (0.154", 3.90mm Width)
Supplier Device Package	16-QSOP
Base Product Number	MAX1684

概要

Description

The MAX1684EEE+ is a high-efficiency, step-up (boost) DC-DC converter designed primarily for driving LEDs and other low-voltage applications. It operates with input voltages ranging from 2.5V to 5.5V, making it suitable for battery-powered devices. The device features a maximum output current of up to 1A, allowing it to power multiple LEDs or deliver significant power to other loads.
Key features include a built-in power switch, adjustable output voltage, and an integrated current limit. The MAX1684EEE+ employs a PWM control scheme for precise dimming capabilities, making it ideal for LED lighting applications. Additionally, it includes protection features such as thermal shutdown and current limiting, ensuring safe operation.
Its compact package and low external component count simplify design efforts in portable applications, such as mobile devices, wearables, and decorative lighting. The MAX1684EEE+ is an effective solution for designers seeking efficient power management in low-voltage environments.

Features

The MAX1684EEE+ is a high-efficiency, step-up (boost) DC-DC converter designed for powering white LEDs or similar applications. Key features include:
1. Output Voltage Regulation: Adjustable output voltage up to 30V.
2. Constant Current Output: Ideal for driving LEDs with constant current.
3. High Efficiency: Typically up to 90%, reducing heat generation.
4. Input Voltage Range: Operates from a wide input range of 2.5V to 16V, suitable for battery-powered devices.
5. Switching Frequency: Operates at a fixed frequency of 1.2 MHz, allowing for smaller external components.
6. Thermal Shutdown: Built-in protection against overheating.
7. Soft-Start Feature: Reduces inrush current during startup.
8. SOT-23 Package: Compact size for space-constrained applications.
9. Low Quiescent Current: Minimizes power consumption in low-load conditions.
These features make the MAX1684EEE+ suitable for portable electronics, LED lighting, and other applications requiring efficient power conversion.

Package

The MAX1684EEE+ is packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package). This surface-mount package is designed for compact applications, providing high performance in a small footprint.

Pinout

The MAX1684EEE+ is an integrated circuit from Maxim Integrated, designed primarily as a high-voltage LED driver. It features a 16-pin package (TSSOP) configuration.
Pin Count: 16 pins
Pin Functions:
1. VIN - Supply voltage input.
2. GND - Ground reference.
3. SW - Switch node for the internal power transistor.
4. LX - Inductor connection.
5. COMP - Compensation node for the control loop.
6. ISET - Current set resistor connection for adjusting LED current.
7. RCS - Resistor for current sensing.
8. PGND - Power ground.
9. CSN - Negative terminal of the current sense resistor.
10. CSP - Positive terminal of the current sense resistor.
11. EN - Enable control pin.
12. VOUT - Output voltage for driving LEDs.
13. SS - Soft-start pin for controlling inrush current.
14. NC - No connection.
15. VREF - Reference voltage output.
16. FB - Feedback for LED current regulation.
These pins collectively enable the device to control LED brightness and manage power efficiently.

Manufacturer

The MAX1684EEE+ is manufactured by Maxim Integrated, which is a company known for its analog and mixed-signal semiconductor products. Founded in 1983, Maxim Integrated specializes in providing solutions for various applications, including power management, data conversion, interface, and microcontrollers. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and capabilities in the semiconductor industry. The company serves a wide range of markets, including automotive, industrial, consumer electronics, and telecommunications.

Application

The MAX1684EEE+ is a high-efficiency LED driver used in various applications, including backlighting for LCDs, automotive lighting, and general illumination. It is suitable for driving multiple LEDs in series, ensuring consistent brightness and color. Its features make it ideal for portable devices, display panels, and architectural lighting, where space and power efficiency are critical.

Equivalent

The MAX1684EEE+ is a step-up (boost) voltage regulator. Equivalent products include the following:
1. LT1302 - Low-noise boost converter.
2. TPS61030 - Adjustable boost converter from Texas Instruments.
3. MIC2584 - High-efficiency boost regulator from Microchip.
4. LM2577 - Simple boost converter from Texas Instruments.
5. NCP3063 - Step-up DC-DC converter from ON Semiconductor.
Always verify specific requirements like output voltage, current, and efficiency when selecting replacements.