TPS51100DGQ

Name: TPS51100DGQ
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

Power management integrated circuit for DDR memory termination

9,725 Effective Inventory

TPS51100DGQ

Effective Inventory9,725

Power management integrated circuit for DDR memory termination

Manufacturer Part # : TPS51100DGQ
Package/Case: HVSSOP-10
Part Status : ACTIVE
Brand: Texas Instruments
Product Categories : Special Purpose Regulators
Series : TPS51100
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TPS51100DGQ DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
480	$1.674	$803.52
800	$1.629	$1,303.20
80	$1.778	$142.24
30	$2.050	$61.50
10	$2.276	$22.76
1	$2.635	$2.64

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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TPS51100DGQ Details

The TPS51100DGQ is a highly efficient DDR termination regulator from Texas Instruments, designed for powering DDR memory applications in laptops, desktops, and servers. This device features an integrated low-RDS(on) FET, which enables the system to achieve high efficiency while maintaining low output ripple. With its excellent transient response and ability to operate over a wide temperature range, the TPS51100 is an ideal choice for various memory applications.

Pinout

1 (VIN): Input Voltage Supply
2 (PGND): Power Ground
3 (SW): Switch Output
4 (VOUT): Output Voltage for DDR
5 (COMP): Compensation Network Connection
6 (RT): Timing Resistor Connection
7 (GND): Ground
8 (SS): Soft Start Input

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Efficiency: Integrated low-RDS(on) FET provides high efficiency and low power dissipation.
Excellent Load Transient Performance: Delivers quick response to load changes, ensuring stability in DDR applications.
Wide Input Voltage Range: Operates from 4.5V to 20V, making it versatile across various power supply designs.
Integrated Soft Start: Features an integrated soft start to minimize inrush current during power-up.
Compact Package: Housed in a small 8-pin HTSSOP package for space-constrained applications.

Application

DDR Memory Applications: Ideal for powering DDR2, DDR3, and DDR4 memory devices in computing systems.
Voltage Regulation in Laptops: Suitable for laptop systems needing precise memory voltage regulation.
Server and Desktop Systems: Used in servers and desktops to provide reliable and efficient supply to memory modules.

Where to Use

The TPS51100DGQ is suitable for applications needing efficient voltage regulation for DDR memory systems, particularly in laptops, desktops, and servers. Its high efficiency, excellent transient response, and small footprint make it ideal for modern computing technologies.

How to Use

Connect the TPS51100DGQ by wiring the VIN pin to the power supply and the PGND to ground. Ensure that the VOUT pin is connected to the DDR memory module for proper voltage supply. The COMP pin should be connected to a compensation network to stabilize the feedback loop, while adjusting the soft start through the SS pin can limit inrush current during startup.

Application Circuit

The application circuit diagram for the TPS51100DGQ illustrates how to connect the regulator to a DDR memory system effectively. This diagram includes all the necessary connections, providing a clear representation of power input, ground, and output lines.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

TPS51101: A similar DDR termination regulator with additional features for enhanced performance.
PTN5110: An alternative DDR regulator from NXP with equivalent specifications.

Complementary

The TPS51100DGQ can be complemented by the TPS51102, which offers additional output configurations and enhanced performance for more demanding memory applications.

Ensure to evaluate the complementary devices for functional compatibility and matching performance characteristics based on your application requirements.

Frequently Asked Questions

Q: What is the maximum output current of the TPS51100DGQ?

A: The TPS51100DGQ can provide a maximum output current of 5A. Please refer to the datasheet for detailed specifications under various conditions.

Q: Can the TPS51100DGQ be used in other applications besides DDR memory?

A: While the TPS51100DGQ is designed primarily for DDR memory regulation, it can be utilized in other voltage regulation applications that require precise output voltage and high efficiency.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Vin (min) (V)	1.2	Vin (max) (V)	3.6
Rating	Catalog	Iq (typ) (mA)	0.5
Features	S3/S5 Support	Operating temperature range (°C)	-40 to 85

FAQs

What is TPS51100DGQ?

The TPS51100DGQ is a dual synchronous step-down DC-DC converter designed by Texas Instruments. It is used primarily for generating lower-voltage DC outputs from a higher-voltage DC input, making it suitable for various applications including notebook computers, networking equipment, and battery-powered devices.

How Does TPS51100DGQ Work?

The TPS51100DGQ operates by converting a higher input voltage to a lower output voltage efficiently. It employs a synchronous buck converter topology, which reduces power losses and heat dissipation compared to traditional linear regulators. This converter is capable of delivering high currents with high efficiency.

How Many Pins does TPS51100DGQ have and What are the Functions of the Pinout Configuration?

The TPS51100DGQ is housed in a 40-pin QFN (Quad Flat No-leads) package. The pinout configuration includes:

VIN: Input voltage supply pin.
PGND: Power ground pin.
SW1, SW2: Switching node pins for the two internal synchronous switches.
LX: Inductor connection pin.
BOOT: Bootstrap capacitor connection pin.
VSENSE1, VSENSE2: Voltage sense pins for each channel.
FB1, FB2: Feedback pins for regulating output voltage.
EN: Enable pin for turning the converter on/off.
SS/TRACK: Soft start/Tracking pin for controlling the start-up behavior.
COMP: Compensation pin for loop stability.

What are the Pros and Cons of TPS51100DGQ?

Pros:

High Efficiency: Utilizes synchronous rectification for minimal power loss.
Compact Size: Comes in a small QFN package, suitable for space-constrained designs.
Wide Input Voltage Range: Supports a wide input voltage range, enhancing versatility.
Adjustable Output Voltage: Output voltage can be adjusted as needed for different applications.
Overcurrent Protection: Includes features like current limit and thermal shutdown for added reliability.

Cons:

Complexity: Requires careful consideration of layout and external components for optimal performance.
Noise: May require additional filtering components for noise-sensitive applications.
Heat Dissipation: High-efficiency converters still generate some heat, requiring thermal management.

Are There Any Equivalents/Alternatives to TPS51100DGQ for Recommendation?

The TPS51117 from Texas Instruments offers a similar dual synchronous step-down converter with enhanced features.
Alternatives to the TPS51100DGQ include the ADP2384 from Analog Devices and the MP2731 from Monolithic Power Systems.