Overview
The TPS40200DRBR, produced by Texas Instruments, is a flexible, non-synchronous buck DC/DC controller designed for a wide range of applications. This controller features a built-in 200-mA driver for P-channel FETs and operates with input voltages ranging from 4.5 V to 52 V. It is notable for its power-saving feature that turns off the driver current once the external FET is fully turned on, thereby extending the device's flexibility and reducing power dissipation. The TPS40200DRBR supports voltage-mode feedback with feed-forward input voltage compensation, ensuring rapid response to input voltage changes. It also includes a 700-mV reference voltage trimmed to 2%, enabling accurate control of low voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5 V to 52 V |
| Output Voltage | 700 mV to 90% of VIN |
| Internal P-channel FET Driver | 200 mA |
| Programmable Fixed-Frequency Operation | 35 kHz to 500 kHz |
| Programmable Short-Circuit Protection | Yes |
| Hiccup Overcurrent Fault Recovery | Yes |
| Programmable Closed-Loop Soft-Start | Yes |
| Reference Voltage | 700 mV (1% accuracy) |
| External Synchronization | Yes |
| Package Options | 8-Pin SOIC (D) and 8-Pin VSON (DRB) |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Voltage feed-forward compensation for rapid response to input voltage changes.
- Undervoltage lockout for protection against low input voltages.
- Programmable fixed-frequency operation between 35 kHz and 500 kHz.
- Programmable short-circuit protection and hiccup overcurrent fault recovery.
- Programmable closed-loop soft-start for controlled startup.
- External synchronization capability to align with system clocks or other controllers.
- Small 8-pin SOIC and VSON packages for compact designs.
Applications
- Industrial Control Systems
- Distributed Power Systems
- DSL/Cable Modems
- Scanners
- Telecom Equipment
Q & A
- What is the input voltage range of the TPS40200DRBR? The input voltage range is from 4.5 V to 52 V.
- What is the output voltage range of the TPS40200DRBR? The output voltage range is from 700 mV to 90% of the input voltage.
- What type of FET driver does the TPS40200DRBR have? It has a 200-mA internal P-channel FET driver.
- Can the TPS40200DRBR be synchronized with other controllers or system clocks? Yes, it supports external synchronization.
- What is the operating temperature range of the TPS40200DRBR? The operating temperature range is from -40°C to 85°C.
- What are the package options for the TPS40200DRBR? It is available in 8-pin SOIC (D) and 8-pin VSON (DRB) packages.
- Does the TPS40200DRBR have programmable short-circuit protection? Yes, it has programmable short-circuit protection and hiccup overcurrent fault recovery.
- What is the reference voltage accuracy of the TPS40200DRBR? The reference voltage is 700 mV with 1% accuracy.
- Can the TPS40200DRBR be used in industrial control systems? Yes, it is suitable for industrial control systems among other applications.
- How is the clock frequency programmed in the TPS40200DRBR? The clock frequency can be programmed using a single external component.
