L6920D

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L6920D

IC REG BST ADJ/FIX 800MA 8TSSOP

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Specifications

Package Tube
ProductStatus Active
Function Step-Up
OutputConfiguration Positive
Topology Boost
OutputType Adjustable (Fixed)
NumberofOutputs 1
Voltage-Input(Min) 0.6V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 1.8V (3.3V, 5V)
Voltage-Output(Max) 5.5V
Current-Output 800mA (Switch)
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-TSSOP (0.173, 4.40mm Width)

Overview

Description

The L6920D is a monolithic synchronous step-down regulator, primarily used in electronic applications to convert a higher voltage to a lower voltage with high efficiency. This device, manufactured by STMicroelectronics, features an adjustable output voltage, typically ranging from 0.6V to the input voltage, which can be as high as 5.5V. It operates at a switching frequency of up to 1 MHz, allowing for the use of small inductors and capacitors, thus minimizing the total footprint of the application.
Key features include a built-in synchronous rectification which improves efficiency by minimizing the conduction losses often associated with external Schottky diodes. It also offers multiple protections such as overcurrent, overtemperature, and short-circuit protection, ensuring reliable performance in various conditions. The L6920D is commonly used in battery-powered devices due to its low quiescent current and excellent efficiency at light loads. Its compact size and robust performance make it suitable for portable electronics, consumer gadgets, and other applications where space and energy efficiency are critical.

Features

The L6920D is a synchronous step-down monolithic power converter designed for portable device applications. It features a wide input voltage range from 2 V to 5.5 V, making it suitable for single-cell Li-ion batteries or several alkaline/NiMH cells. The device delivers an adjustable output voltage ranging from 0.6 V to the input voltage, optimized for efficiency under different loads.
Key features include a high-efficiency pulse-width modulation (PWM) mode and a power-saving mode (PSM) for light loads, ensuring optimal power consumption. It can deliver up to 600 mA of output current. The L6920D is equipped with protection mechanisms such as overcurrent, thermal shutdown, and short-circuit protection, enhancing reliability.
The device operates with a fixed-frequency switching, which minimizes noise and allows for a compact design using small external components. Additionally, it includes a low-battery detector and a power-good output signal, which contributes to efficient power management in complex systems. The L6920D is packaged in a small, lead-free TSSOP8 package, suitable for space-constrained applications.

Package

The L6920D is a DC-DC step-down converter and is typically available in a small, 8-pin SOIC (Small Outline Integrated Circuit) package. This compact package design is suitable for space-constrained applications.

Pinout

The L6920D is a step-up DC-DC converter IC manufactured by STMicroelectronics. It is typically used in battery-powered applications to provide a stable output voltage. The L6920D has an 8-pin configuration. Here’s a brief overview of its pin functions:
1. SW: Switch output. Connects to the inductor.
2. GND: Ground. Common ground reference for the IC.
3. FB: Feedback. Connects to output for voltage regulation.
4. VREF: Reference voltage output. Provides a reference voltage.
5. VCC: Supply voltage input. Connects to the input voltage source.
6. OUT: Output voltage. Connects to the output capacitor and load.
7. EN: Enable. Activates or deactivates the converter.
8. LBI/LBO: Low battery input/output. Used for battery status monitoring.
These pins collectively help the L6920D efficiently convert a low input voltage to a higher, regulated output voltage suitable for various applications.

Manufacturer

The L6920D is manufactured by STMicroelectronics, a multinational electronics and semiconductor manufacturer. STMicroelectronics is a global company that designs, develops, manufactures, and markets a broad range of semiconductor products used in various microelectronics applications. These applications include automotive products, industrial equipment, personal electronics, and communication infrastructure. The company is known for its innovation in semiconductor solutions and operates in numerous countries, serving customers worldwide.

Application

The L6920D is a step-up DC-DC converter IC commonly used in battery-powered applications. It is ideal for devices requiring efficient power management, such as portable electronics, mobile phones, and handheld devices. The L6920D provides a boost in voltage, making it suitable for applications needing a stable output from low-voltage sources like single-cell batteries. Its compact size and high efficiency make it suitable for compact, energy-sensitive applications.

Equivalent

The L6920D is a low-dropout linear regulator from STMicroelectronics. Equivalent products from other manufacturers include the MCP1700 series from Microchip, MIC5205 from Microchip, and the LP2985 from Texas Instruments. These regulators offer similar functionalities such as low dropout voltage, high accuracy, and low quiescent current. Always check the datasheets to ensure compatibility in terms of pin configuration, output current, and voltage requirements.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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