L6920DTR

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L6920DTR

IC REG BST ADJ/FIX 800MA 8TSSOP

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規格

Package Tape & Reel (TR),Cut Tape (CT)
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)

概述

Description

The L6920DTR is a step-down monolithic power converter integrated circuit (IC) designed by STMicroelectronics. It is used to convert a higher input voltage to a lower output voltage efficiently, making it ideal for battery-powered applications and devices requiring stable voltage regulation.
The device operates in a fixed-frequency PWM mode and is known for its high efficiency, typically up to 95%, which helps in minimizing heat dissipation and prolonging battery life. It supports an input voltage range of 2 V to 5.5 V and can deliver an output current of up to 600 mA. The output voltage can be adjusted via external resistors, allowing for flexible application design.
Key features of the L6920DTR include overcurrent protection, thermal shutdown, and a low quiescent current, making it suitable for low-power applications. Its compact design and minimal external component requirement make it ideal for use in portable electronics such as mobile phones, GPS devices, and other handheld gadgets.

Features

The L6920DTR is a highly efficient step-up DC-DC converter designed for battery-powered applications. Key features include:
1. Input Voltage Range: It operates with an input voltage range between 0.6V and 5.5V, making it suitable for single-cell and dual-cell battery configurations.
2. Output Voltage: The device can generate output voltages as high as 5.5V, which is adjustable via external resistors.
3. Efficiency: Boasts high efficiency, often exceeding 90%, which extends battery life by minimizing energy loss.
4. Current Capability: It can deliver up to 200mA output current depending on the input voltage and the output voltage setting.
5. Low Quiescent Current: The device features low quiescent current, which is beneficial for battery-operated devices as it reduces power consumption when the device is idle.
6. Shutdown Mode: It includes a shutdown mode that significantly reduces power consumption to conserve battery life.
7. Protection Features: Includes overload and thermal protection to enhance reliability and safeguard against damage.
8. Package: Available in a compact package, suitable for space-constrained applications.
These features make the L6920DTR ideal for portable electronics, handheld devices, and other applications requiring efficient power conversion.

Package

The L6920DTR is a step-down DC-DC converter from STMicroelectronics, typically provided in a SOT-23-5 package. This package is a small, surface-mount option often used for compact electronic applications where space is limited.

Pinout

The L6920DTR is a step-up DC-DC converter produced by STMicroelectronics. It typically comes in a SOT-23-5 package, which has 5 pins. Here are the pin functions:
1. SW (Switch Output): This pin connects to the inductor and the anode of the output rectifier diode. It is the switching node of the converter.

2. GND (Ground): This is the ground pin and is connected to the ground of the circuit.
3. FB (Feedback): This pin is used to set the output voltage through an external resistor divider network connected from the output to this pin and then to ground.
4. VOUT (Output Voltage Sense): This pin senses the output voltage. It is used for over-voltage protection and typically connected directly to the output.
5. VIN (Input Voltage): This is the supply voltage for the device and is connected to the input power source.
The L6920DTR is designed for applications requiring efficient step-up voltage conversion, providing high efficiency and low noise operation.

Manufacturer

The L6920DTR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products and solutions. The company serves various markets including automotive, industrial, personal electronics, communications equipment, and the Internet of Things (IoT). STMicroelectronics is known for its expertise in areas such as microcontrollers, power management, sensors, and analog devices.

Application

The L6920DTR is a high-efficiency step-up DC-DC converter used in various applications. It is commonly found in portable and battery-powered devices due to its ability to boost low input voltages to higher output levels efficiently. Key application areas include powering microcontrollers, sensors, and other low-power electronic components in smartphones, tablets, medical devices, and other compact gadgets. Its low quiescent current and high efficiency make it suitable for extending battery life in these devices.

Equivalent

The L6920DTR is a step-up DC-DC converter. Equivalent products could include the TPS61070 from Texas Instruments, the LTC3400 from Analog Devices, and the MAX1724 from Maxim Integrated. These alternatives offer similar functionalities but may differ slightly in specifications like input voltage range or output current capacity, so it's important to review their datasheets to ensure compatibility with your application.

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