STMicroelectronics L6920DC Synchronous Rectifier Step-Up Converter Datasheet

The L6920DC is a high efficiency monolithic step up switching converter IC especially designed for battery powered application. It requires only three external components to realize the conversion from the battery voltage to the selected output voltage. The minimum output voltage is 1.8V: suitable to supply the most advanced ASIC and µP. High switching frequency allows for a low profile, small sized inductor and output capacitor to be used. Reference voltage, low battery detection and Shutdown are provided together with over current, over voltage.


STMicroelectronics L6920DC Synchronous Rectifier Step-Up Converter Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
16
File format
PDF
File size
395 KB
Published
10 August, 2012
Updated
30 September, 2023
Models
L6920D, L6920
MD5 checksum
EDA5940E17FA267D3F7DBF23BC0D70ED

About this manual

The L6920DC is a high efficiency monolithic step-up switching converter IC designed for battery-powered applications such as digital cameras, cellular phones, and GPS devices. It features an internal synchronous rectifier, eliminating the need for an external diode, and supports adjustable output voltages from 1.8V to 5.5V or fixed 3.3V and 5V outputs. The device operates with a minimum startup input voltage of 0.8V and a maximum operating input voltage of 5.5V.

What's inside

  • Pin settings
  • Electrical data
  • Electrical characteristics
  • Typical performance
  • Principle of operation
  • Start-UP
  • Shutdown
  • Low battery detection
  • Output voltage selection
  • Package mechanical data

Specifications

Start Up Input Voltage0.8 V
Operating Input VoltageUp to 5.5V
Output Voltage Range1.8V to 5.5V
Quiescent Current10 uA
Switching FrequencyUp to 1MHz
Maximum Junction Temperature150 °C
LX Switch Current Limit0.55 A

Frequently asked questions

What is the minimum startup input voltage?

The minimum startup input voltage is 0.8V.

What are the fixed output voltage options?

The device supports 3.3V and 5V fixed output voltages.

Is an external diode required?

No, the device features an internal synchronous rectifier.

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