TPS40211DRCT Integrated Circuits (ICs) |
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Allicdata Part #: | 296-23414-2-ND |
Manufacturer Part#: |
TPS40211DRCT |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG CTRLR MULT TOPOLOGY 10SON |
More Detail: | Boost, Flyback, SEPIC Regulator Positive Output St... |
DataSheet: | TPS40211DRCT Datasheet/PDF |
Quantity: | 1000 |
Specifications
Frequency - Switching: | 35kHz ~ 1MHz |
Base Part Number: | TPS40211 |
Supplier Device Package: | 10-VSON (3x3) |
Package / Case: | 10-VFDFN Exposed Pad |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Control Features: | Enable, Frequency Control, Soft Start |
Serial Interfaces: | -- |
Clock Sync: | Yes |
Synchronous Rectifier: | No |
Duty Cycle (Max): | -- |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 4.5 V ~ 52 V |
Output Phases: | 1 |
Number of Outputs: | 1 |
Topology: | Boost, Flyback, SEPIC |
Output Configuration: | Positive |
Function: | Step-Up, Step-Up/Step-Down |
Output Type: | Transistor Driver |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
Description
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Introduction
The TPS40211DRCT is a fully integrated DC-DC buck converter controller with synchronous rectification specifically designed and optimized to power cellular phone base band and other low voltage, low power-consumption applications. Optimized for 600mA high current ratings, the TPS40211DRCT operates from 4V to 10V input voltage, and provides the regulated output voltage of up to 3.3V at up to 1.2A of load current from a 1.9V to 3.6V input voltage. The device features a PWM clock frequency of 600kHz, and delivers up to 94% efficiency, supporting various battery chemistries for long run time and extended battery life. The TPS40211DRCT has integrated compensation support, along with additional features such as N-Channel MOSFET gate drive, low quiescent current and adjustable switching frequency.Application Field
The TPS40211DRCT provides a high efficiency, high current, low profile step-down power conversion solution suitable for powering cellular phones and other portable applications. With its wide input voltage range and optimum combination of critical operating parameters, the device can achieve power densities that are much higher than those currently achievable with discrete solutions. Typical applications include battery-powered equipment, including smart phones, as well as a variety of distributed power solutions that require low noise, high efficiency and cost-effective solutions.Working Principle
The TPS40211DRCT is a synchronous buck controller designed to operate at a fixed 600kHz switching frequency. The switching frequency is set by an internal oscillator. The device also integrates a gate driver for the synchronous N-Channel MOSFETs. The device senses the output voltage through a resistor divider from the output to VFB pin. The device provides programmable soft-start / soft-stop features to ensure safe start-up and shut down. The output voltage is then regulated by PWM control. The PWM amplifier compares an internal reference signal to the feedback signal. The error between the two signals is amplified and is then used to modulate the PWM signal that controls the switching action of the internal high-side and low-side MOSFETs. As the output regulator adjusts the duty cycle in response to the feedback signal, the buck converter output is stabilized.The TPS40211DRCT also features an internal over-voltage protection (OVP) circuit, which increases the output voltage limit by reducing the duty cycle of the PWM signal when the output voltage exceeds the programmed over-voltage threshold. OVP is protected from overload conditions or shorts in the output by detecting an increasing output voltage, and reducing the PWM duty cycle until the output settles within its typical accuracy range.Conclusion
In summary, the TPS40211DRCT is a fully integrated DC-DC buck converter controller specifically designed and optimized to power cellular phone base band and other low voltage, low power-consumption applications. The device features a PWM clock frequency of 600kHz, and delivers up to 94% efficiency, supporting various battery chemistries for long run time and extended battery life. The device also integrates a gate driver for the synchronous N-Channel MOSFETs, programmable soft-start / soft-stop features, and an internal over-voltage protection circuit.The specific data is subject to PDF, and the above content is for reference
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