TPS51218DSCR

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TPS51218DSCR

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IC REG CTRLR BUCK 10WSON

  • Nhà sản xuấtTexas Dụng cụ

  • Ông. Phần #TPS51218DSCR

  • Gói WSON (DSC)-10

  • Có sẵn4073

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series D-CAP™
ProductStatus Active
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 4.5V ~ 6.5V
SynchronousRectifier Yes
ClockSync No
ControlFeatures Enable, Frequency Control, Power Good
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 10-WFDFN Exposed Pad

Tổng quan

Description

The TPS51218DSCR is a high-efficiency, synchronous step-down DC-DC converter designed by Texas Instruments. It is part of the TPS51218 series, which is tailored for low-power applications requiring precise voltage regulation. The device operates with a supply voltage range of 4.5V to 18V and can deliver an output current of up to 3A. It features a fixed-frequency, current-mode control which ensures stable operation and fast transient response.
The TPS51218DSCR supports a variety of applications, including notebook computers, digital TVs, and other portable consumer electronics, due to its compact size and high power efficiency. It includes multiple features such as an adjustable output voltage, soft-start, power-good signaling, and thermal shutdown protection to enhance performance and safety.
The device is housed in a small, thermally enhanced 10-pin QFN package (DSC), allowing for efficient heat dissipation and compact design. Its ease of use, combined with robust performance features, makes the TPS51218DSCR an ideal choice for designers seeking reliable power management solutions in space-constrained applications.

Equivalent

The TPS51218DSCR is a step-down, DC-DC converter from Texas Instruments. Equivalent products include:
1. LTC3605 by Analog Devices: A high-efficiency monolithic synchronous step-down regulator.
2. MP2182 by Monolithic Power Systems: A synchronous step-down regulator with a similar feature set.
3. LM26400 by Texas Instruments: Another TI part with similar functionality.
4. MAX15021 by Maxim Integrated: A high-current, step-down DC-DC converter.
Always verify specifications to ensure compatibility with your application.

Features

The TPS51218DSCR is a synchronous buck controller designed by Texas Instruments, tailored for low-voltage, high-current power supply applications. Key features include:
1. Wide Input Voltage Range: Operates from 3 V to 24 V, supporting various power supply inputs.
2. Integrated Drivers: Facilitates high-side and low-side MOSFETs for efficient step-down conversion.
3. Adjustable Switching Frequency: Allows tuning between 200 kHz and 1.5 MHz for efficiency and size optimization.
4. D-CAP™ Mode: Delivers fast transient response and requires minimal external components, enhancing performance in dynamic environments.
5. Light Load Efficiency: Features Auto-Skip Eco-mode™ to maintain efficiency under light loads.
6. Adjustable Output Voltage: Supports outputs as low as 0.6 V, suitable for various applications.
7. Protection Features: Includes over-current, under-voltage, and thermal shutdown protections to ensure reliable operation.
8. Compact Package: Available in a small, thermally enhanced, 10-pin VSON package for space-constrained designs.
These features make the TPS51218DSCR a versatile choice for powering processors, FPGAs, and other digital circuits requiring high efficiency and compact form factors.

Pinout

The TPS51218DSCR is a synchronous buck controller designed by Texas Instruments. It typically comes in an 8-pin package. Here’s a brief description of the pin functions:
1. VIN (Pin 1): Input voltage supply for the power stage.
2. EN (Pin 2): Enable pin for turning the controller on or off.
3. FB (Pin 3): Feedback pin used to set the output voltage.
4. COMP (Pin 4): Compensation pin for stabilizing the control loop.
5. GND (Pin 5): Ground reference for the device.
6. DRV (Pin 6): Drive pin for the external MOSFET gate.
7. VREG5 (Pin 7): Internal 5V regulator output used mainly to supply the gate drive.
8. PGOOD (Pin 8): Power good indicator that signals when the output voltage is within a certain range.
This configuration allows the TPS51218DSCR to efficiently regulate output voltage with features like soft-start, power good monitoring, and overcurrent protection.

Manufacturer

The TPS51218DSCR is manufactured by Texas Instruments Incorporated. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic devices. TI is one of the largest global semiconductor companies and is particularly known for its analog chips and embedded processors, which are crucial components in a variety of applications, from consumer electronics to industrial systems and automotive technology. The company has a strong emphasis on innovation and quality, driving advancements in electronics and fostering improvements in performance, energy efficiency, and miniaturization of electronic components.

Application

The TPS51218DSCR is a synchronous buck controller commonly used for applications requiring high efficiency and compact design. Its primary application areas include power management for portable electronics, SSDs, and laptops, where it regulates power supply to processors and other critical components. It is also used in telecommunications and networking equipment to provide stable power delivery. Additionally, the controller is suitable for industrial and consumer electronics, where reliable power conversion is essential. Its features, such as adaptive on-time D-CAP2 mode control and a wide input voltage range, make it versatile for various low-voltage, high-current applications.

Package

The TPS51218DSCR is packaged in an 8-pin, small outline package (SON), specifically a VSON (Very Thin Small Outline No-lead) package type. It's designed for compactness and efficiency, suitable for space-constrained applications.

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