Overview
The MAX1676, part of the MAX1674/MAX1675/MAX1676 family, is a high-efficiency, low-supply-current, compact step-up DC-DC converter produced by Maxim Integrated, now a part of Analog Devices Inc. This device is designed to provide a reliable and efficient power conversion solution for various battery-powered and low-voltage applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | °C | |
| Junction Temperature | 150 | °C | ||
| Storage Temperature Range | -65 | 165 | °C | |
| Lead Temperature (soldering, 10s) | 300 | °C | ||
| Input Voltage Range | 2 | 5.5 | V | |
| Output Voltage Range | 2 | 5.5 | V | |
| Switch Current (LX) | -1.5 | 1.5 | A | |
| Output Current (OUT) | -1.5 | 1.5 | A | |
| Continuous Power Dissipation (TA = +70°C) | 330 | 444 | mW | |
| Reference Voltage (VREF) | 1.274 | 1.30 | 1.326 | V |
| Start-Up Voltage | 1.1 | 5.5 | V |
Key Features
- High Efficiency: The MAX1676 offers high efficiency, making it suitable for battery-powered devices.
- Low Supply Current: It features a low supply current, which helps in extending battery life.
- Compact Package: Available in a 10-pin µMAX package, making it ideal for space-constrained designs.
- Adjustable Current Limit: Includes adjustable current limit and circuitry to reduce inductor ringing.
- Low-Battery Detection: On-chip comparator for low-battery detection.
- Flexible Output Voltage Setting: Output voltage can be set to 3.3V or 5V by connecting the FB pin to GND or OUT, and can be adjusted using a resistor-divider network.
Applications
- Pagers and Wireless Phones: Suitable for use in portable communication devices.
- Battery-Powered Devices: Ideal for various battery-powered applications requiring efficient power conversion.
- Handheld Electronics: Used in handheld computers, PDAs, and other portable electronic devices.
Q & A
- What is the operating temperature range of the MAX1676?
The operating temperature range is -40°C to +85°C.
- How can the output voltage be set on the MAX1676?
The output voltage can be set to 3.3V or 5V by connecting the FB pin to GND or OUT, and can be adjusted using a resistor-divider network.
- What is the maximum junction temperature for the MAX1676?
The maximum junction temperature is +150°C.
- Does the MAX1676 have low-battery detection?
Yes, it includes an on-chip comparator for low-battery detection.
- What is the typical reference voltage (VREF) of the MAX1676?
The typical reference voltage (VREF) is 1.30V.
- What is the minimum input voltage for the MAX1676?
The minimum input voltage is 2V.
- What is the maximum output current of the MAX1676?
The maximum output current is 1.5A.
- Is the MAX1676 available in different package options?
Yes, it is available in a 10-pin µMAX package.
- What are some common applications for the MAX1676?
Common applications include pagers, wireless phones, and other battery-powered devices.
- How does the MAX1676 reduce inductor ringing?
The MAX1676 includes circuitry to reduce inductor ringing.
