Datasheet4U Logo Datasheet4U.com

LM2619 - 500mA Sub-Miniature Step-Down DC-DC Converter

General Description

The LM2619 step down DC-DC converter is optimized for powering circuits from a single Lithium-Ion cell.

It steps down an input voltage of 2.8V to 5.5V to an output of 1.5V to 3.6V at up to 500mA.

Output voltage is set using resistor feedback dividers.

Key Features

  • protect the device and system during fault conditions. The LM2619 is available in a 10 bump micro SMD package. This packaging uses National’s chip-scale micro SMD technology and offers the smallest possible size. A high switching frequency (600kHz) allows use of tiny surface-mount components. The device features external compensation to tailor the response to a wide range of operating conditions. Key Specifications n Operates from a single LiION cell (2.8V to 5.5V) n Output voltage (1.5V to 3.6.

📥 Download Datasheet

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM261 High Speed Differential Comparators
LM2611 1.4MHz Cuk Converter
LM2612 Step-Down DC-DC Converter
LM2614 400mA Sub-Miniature Adjustable DC-DC Converter
LM2618 Synchronous PWM & PFM Programmable DC-DC Converter
LM26 Factory Preset Thermostat
LM260 Voltage Comparators
LM26001 Switching Regulator
LM26001B 1.5A Switching Regulator
LM2601 Adapter Interface Circuit

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
LM2619 500mA Sub-Miniature Step-Down DC-DC Converter October 2003 LM2619 500mA Sub-Miniature Step-Down DC-DC Converter General Description The LM2619 step down DC-DC converter is optimized for powering circuits from a single Lithium-Ion cell. It steps down an input voltage of 2.8V to 5.5V to an output of 1.5V to 3.6V at up to 500mA. Output voltage is set using resistor feedback dividers. The device offers three modes for mobile phones and similar portable applications. Fixed-frequency PWM mode minimizes RF interference. A SYNC input allows synchronizing the switching frequency in a range of 500kHz to 1MHz. Low current hysteretic PFM mode reduces quiescent current to 160µA (typ.). Shutdown mode turns the device off and reduces battery consumption to 0.02µA (typ.).