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TPS40200GDR

IC REG CTRLR BUCK 8SOIC

Part Number: TPS40200GDR

Manufacturer: Texas Instruments

Category: DC DC Switching Controllers

Package: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TPS40200GDR.pdf

Description: IC REG CTRLR BUCK 8SOIC

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TPS40200GDR Wide Input Non-Synchronous Buck DC/DC Controller with 200-mA Driver

A comprehensive technical overview of the TPS40200GDR, a wide-input non-synchronous buck DC/DC controller from Texas Instruments featuring 4.5-V to 52-V input voltage range, adjustable output voltage from 0.7 V to 90% of VIN, 200-mA internal P-channel FET driver, programmable switching frequency from 35 kHz to 500 kHz, and voltage feed-forward compensation. Covers device function, core features, electrical specifications, 8-lead SOIC package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 8-SOIC 4.5V to 52V

Device Classification Non-Synchronous Buck DC/DC Controller

Part Number: TPS40200GDR

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +85°C

PRODUCT OVERVIEW

What Is the TPS40200GDR?

TPS40200GDR is a flexible, non-synchronous buck DC/DC controller from Texas Instruments featuring a built-in 200-mA driver for P-channel FETs[reference:0]. The device is designed for step-down (buck) converter applications with wide input voltage range capability.

The TPS40200GDR operates with an input voltage range of 4.5 V to 52 V and delivers an adjustable output voltage from 0.7 V to 90% of VIN[reference:1]. The circuit uses voltage-mode feedback with feed-forward input voltage compensation that responds instantly to input voltage changes[reference:2]. The integral 700-mV reference is trimmed to 2%, providing accurate control of low voltages[reference:3].

The device features a power-saving function that turns off driver current once the external FET has been fully turned on, allowing operation up to 52 V without dissipating excessive power[reference:4]. Clock frequency, soft-start, and overcurrent limits are each easily programmed by a single external component[reference:5]. The part has undervoltage lockout and can be easily synchronized to other controllers or a system clock to satisfy sequencing and/or noise-reduction requirements[reference:6]. The TPS40200GDR is offered in an 8-lead SOIC (D) package and is rated for operation from –40°C to +85°C[reference:7][reference:8]. The device is RoHS compliant, REACH unaffected, and in active production[reference:9][reference:10].

Wide Input Voltage Range 4.5-V to 52-V input range for versatile industrial and automotive applications[reference:11].

Adjustable Output Voltage 0.7 V to 90% of VIN with 2% reference accuracy for precise voltage regulation[reference:12][reference:13].

Programmable Features Switching frequency (35 kHz–500 kHz), soft-start, and overcurrent limit each set by a single external component[reference:14].

DEVICE HIGHLIGHTS

Key Features and Benefits of TPS40200GDR

Wide Input Voltage Range

4.5-V to 52-V input voltage range accommodates a broad spectrum of applications, from battery-powered systems to industrial power supplies[reference:15].

200-mA Internal P-Channel FET Driver

Built-in 200-mA driver for P-channel FETs simplifies external component selection and reduces BOM complexity[reference:16][reference:17].

Programmable Switching Frequency

Programmable fixed-frequency operation between 35 kHz and 500 kHz, enabling optimization between efficiency and component size[reference:18].

Comprehensive Protection Features

Programmable short-circuit protection with hiccup overcurrent fault recovery, undervoltage lockout, and thermal protection[reference:19].

External Synchronization

Can be easily synchronized to other controllers or a system clock to satisfy sequencing and noise-reduction requirements[reference:20].

Compact 8-Lead SOIC Package

Available in an 8-lead SOIC package with a 4.90mm × 3.90mm footprint, ideal for space-constrained designs[reference:21].

REFERENCE DATA

Technical Specifications for TPS40200GDR

Part Number	TPS40200GDR	Manufacturer	Texas Instruments
Device Type	Non-Synchronous Buck DC/DC Controller	Topology	Buck (Step-Down)
Number of Outputs	1	Output Type	Transistor Driver
Input Voltage Range	4.5 V to 52 V[reference:22][reference:23]	Output Voltage Range	0.7 V to 90% of VIN[reference:24]
Maximum Output Voltage	46.8 V[reference:25]	Reference Voltage	0.7 V (2% Accuracy)[reference:26][reference:27]
Switching Frequency (Programmable)	35 kHz to 500 kHz[reference:28][reference:29]	Maximum Duty Cycle	95%[reference:30][reference:31]
Internal FET Driver	200 mA (P-Channel)[reference:32]	Synchronous Rectifier	No[reference:33][reference:34]
Quiescent Current (Iq)	1.5 mA (Typical)[reference:35][reference:36]	Control Mode	Voltage Mode[reference:37]
Features	Adjustable Current Limit, Soft-Start, External Compensation, Frequency Synchronization, Overcurrent Protection[reference:38]	Fault Recovery	Hiccup Overcurrent Fault Recovery[reference:39]
Clock Synchronization	No[reference:40][reference:41]	Package / Case	8-SOIC (0.154", 3.90mm Width)[reference:42]
Supplier Device Package	8-SOIC[reference:43]	Package Body Size	4.90mm × 3.90mm
Mounting Type	Surface Mount[reference:44]	Operating Temperature (Ambient)	-40°C to +85°C[reference:45][reference:46]
Junction Temperature	-40°C to +125°C[reference:47]	Moisture Sensitivity Level	Level-1-260C-UNLIM[reference:48][reference:49]
RoHS	ROHS3 Compliant[reference:50]	REACH Status	REACH Unaffected[reference:51]
Lead Finish / Ball Material	NiPdAu[reference:52]	US ECCN	EAR99[reference:53]
Packaging	Tape & Reel (2,500 per Reel)[reference:54][reference:55]	Product Status	Active[reference:56][reference:57]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for TPS40200GDR

Power Supply & Key Features

The TPS40200GDR requires careful power supply design for optimal performance:

Input Voltage: 4.5 V to 52 V operating range with undervoltage lockout protection[reference:58][reference:59]
Output Voltage Programming: Adjustable from 0.7 V to 90% of VIN using an external resistor divider[reference:60]
Switching Frequency: Programmable between 35 kHz and 500 kHz with a single external resistor[reference:61]
Soft-Start: Programmable closed-loop soft-start with a single external capacitor[reference:62]
Current Limit: Programmable short-circuit protection with hiccup overcurrent fault recovery[reference:63]
Voltage Feed-Forward: Responds instantly to input voltage changes for improved transient response[reference:64][reference:65]

PCB and Power-Supply Guidance

Controller performance depends on layout and component selection:

External FET: Uses an external P-channel FET driven by the built-in 200-mA driver[reference:66][reference:67]
External Compensation: External compensation components allow optimization of loop response[reference:68]
External Synchronization: Can be synchronized to other controllers or a system clock[reference:69]
Ground Plane: Use a solid ground plane to minimize noise and ensure low-inductance return paths
Power-Saving Feature: Driver current turns off once the external FET has been fully turned on, reducing power dissipation[reference:70]
Verify the recommended PCB footprint from the official datasheet prior to production

8-LEAD SOIC (4.90mm × 3.90mm)

Pin Configuration Reference for TPS40200GDR

TPS40200

SOIC TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The SOIC (D) package has 8 pins with a 4.90mm × 3.90mm body size.

1 SS Soft-Start - Capacitor programs soft-start time

2 COMP Compensation - External compensation network for loop stability

3 VFB Voltage Feedback - Inverting input of the error amplifier; connects to output voltage feedback divider

4 ISNS Current Sense - Input for current limit sensing

5 GND Ground - Device ground connection

6 DRV Gate Drive Output - 200-mA driver output for external P-channel FET

7 VIN Input Supply Voltage - 4.5 V to 52 V

8 RC Frequency Set - Resistor programs switching frequency (35 kHz to 500 kHz)

APPLICATION AREAS

Typical Applications for TPS40200GDR

Point-of-Load Regulation

Provides efficient step-down conversion for local power supplies in distributed power architectures.

Industrial Power Supplies

Wide 4.5-V to 52-V input range and programmable features suit industrial automation and control systems.

Battery-Powered Systems

1.5 mA quiescent current and adjustable output voltage make this device suitable for battery-powered applications[reference:71].

Automotive Applications

52 V input capability supports automotive 12 V and 24 V battery systems with robust transient protection.

Consumer Electronics

Provides efficient power conversion for set-top boxes, DVD players, and other consumer devices.

Telecom & Networking Equipment

Wide input range and synchronization capability suit telecom and networking infrastructure applications[reference:72].

REPLACEMENT GUIDANCE

Selecting an Alternative for TPS40200GDR

A replacement for the TPS40200GDR should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Texas Instruments datasheet and product pages.

Non-synchronous buck controller with external FET

Input voltage range: 4.5 V to 52 V

Output voltage: 0.7 V to 90% of VIN

Switching frequency: 35 kHz to 500 kHz

Package: 8-SOIC (D)

Temperature range: –40°C to 85°C

200-mA internal P-channel FET driver

Programmable soft-start, current limit, frequency

Packaging alternatives (same package, different carrier):

Part Number	Package	Carrier	SPQ	Temperature Range
TPS40200GDR	8-SOIC (D)	Tape & Reel	2,500[reference:73][reference:74]	-40°C to 85°C
TPS40200DG4	8-SOIC (D)	Tube	-	-40°C to 85°C
TPS40200DRBR	8-VSON (DRB) 3mm × 3mm	Tape & Reel	3,000	-40°C to 85°C

The TPS40200GDR is the tape-and-reel packaged variant in 8-SOIC (D) package (2,500 units per reel)[reference:75][reference:76]. For tube packaging, consider TPS40200DG4. For a smaller footprint option in 8-VSON (DRB) package, consider TPS40200DRBR[reference:77]. For enhanced product version for defense and aerospace applications, refer to TPS40200-EP[reference:78]. Select based on package, packaging, and board space requirements.

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MANUFACTURER INFORMATION

Texas Instruments

The TPS40200 (TPS40200GDR) belongs to the TPS40200 family of wide-input non-synchronous buck DC/DC controllers from Texas Instruments. The device is a flexible, non-synchronous controller with a built-in 200-mA driver for P-channel FETs[reference:79]. The circuit operates with inputs up to 52 V with a power-saving feature that turns off driver current once the external FET has been fully turned on[reference:80]. The TPS40200 is available in 8-pin SOIC and 8-pin VSON packages and supports many of the features of more complex controllers[reference:81]. The family is widely used in point-of-load regulation, industrial power supplies, automotive applications, and telecom infrastructure.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: TPS40200GDR

Manufacturer: Texas Instruments

Package: 8-SOIC (0.154", 3.90mm Width)

Series: -

Package/Case: 8-SOIC (0.154", 3.90mm Width)

Packaging: Tape & Reel (TR)

Product Status: Active

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Phases: 1

Voltage - Supply (Vcc/Vdd): 4.5V ~ 52V

Frequency - Switching: 35kHz ~ 500kHz

Duty Cycle (Max): 95%

Synchronous Rectifier: No

Clock Sync: No

Serial Interfaces: -

Control Features: Frequency Control, Soft Start

Operating Temperature: -40°C ~ 85°C (TA)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 8-SOIC

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TPS40200GDR Procurement and Technical Support

TPS40200GDR is manufactured by Texas Instruments. This page provides purchasing information including manufacturer, category, package, datasheet, stock reference, price reference and product specifications.

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Part Number: TPS40200GDR

Manufacturer: Texas Instruments

Package: 8-SOIC (0.154", 3.90mm Width)

Category: DC DC Switching Controllers

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