Datasheet4U Logo Datasheet4U.com

MAX1684 - Low-Noise / 14V Input / 1A / PWM Step-Down Converters

General Description

The MAX1684/MAX1685 are high-efficiency, internalswitch, PWM step-down switching regulators intended to power cellular phones, communicating PDAs, and handy-terminals.

These devices deliver a guaranteed 1A output current from two Li-Ion batteries.

Key Features

  • o Up to 96% Efficiency o 1A Guaranteed Output Current o 100% Duty Cycle in Dropout o 2.7V to 14V Input Range (15V absolute max) o ±1% Accurate Reference Output o 0.24Ω P-Channel On-Resistance o Synchronizable Switching Frequency o Fixed-Frequency PWM Operation 300kHz (MAX1684) 600kHz (MAX1685) o 150µA Normal Mode Quiescent Current o 25µA Low-Power Mode Quiescent Current o 2µA Shutdown Current o Dual Mode™ Fixed 3.3V (±1%) Output or Adjustable Output (1.25V to VIN) o Small 16-QSOP Package o Auxil.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX16840 LED Driver Maxim Integrated Products
MAX16841 Controller Maxim Integrated Products
MAX16800 Adjustable Linear High-Brightness LED (HB LED) Driver Maxim Integrated Products
MAX16801A Offline and DC-DC PWM Controllers Maxim Integrated Products
MAX16801B Offline and DC-DC PWM Controllers Maxim Integrated Products

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1680 Switched-Capacitor Voltage Converters
MAX1681 Switched-Capacitor Voltage Converters
MAX1682 Switched-Capacitor Voltage Doublers
MAX1683 Switched-Capacitor Voltage Doublers
MAX1685 Low-Noise / 14V Input / 1A / PWM Step-Down Converters

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-1454; Rev 0; 4/99 L MANUA ION KIT HEET T A U L EVA TA S WS DA FOLLO Low-Noise, 14V Input, 1A, PWM Step-Down Converters Features o Up to 96% Efficiency o 1A Guaranteed Output Current o 100% Duty Cycle in Dropout o 2.7V to 14V Input Range (15V absolute max) o ±1% Accurate Reference Output o 0.24Ω P-Channel On-Resistance o Synchronizable Switching Frequency o Fixed-Frequency PWM Operation 300kHz (MAX1684) 600kHz (MAX1685) o 150µA Normal Mode Quiescent Current o 25µA Low-Power Mode Quiescent Current o 2µA Shutdown Current o Dual Mode™ Fixed 3.3V (±1%) Output or Adjustable Output (1.