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TPS2553
0.075-1.7A adj. ILIMIT, 2.5-6.5V, 85mΩ USB power switch, active-high, reverse blocking
Data sheet
TPS2553
- Up to 1.5-A Maximum Load Current
- ±6% Current-Limit Accuracy at 1.7 A (Typical)
- Meets USB Current-Limiting Requirements
- Backwards Compatible With TPS2550 and TPS2551
- Adjustable Current Limit: 75 mA to 1700 mA (Typical)
- Constant-Current (TPS255x) and Latch-Off (TPS255x-1) Versions
- Fast Overcurrent Response - 2 µs (Typical)
- 85-mΩ High-Side MOSFET (DBV Package)
- Reverse Input-Output Voltage Protection
- Operating Range: 2.5 V to 6.5 V
- Built-In Soft Start
- 15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
- UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0
- See the TI Switch Portfolio
The TPS255x and TPS255x-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typical) through an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.
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Technical documentation
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View all 6 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. F) | PDF | HTML | 15 Aug 2014 |
| Certificate | TPS255x UL 2367 Certificate of Compliance E169910-20090213 | 25 Jun 2024 | ||
| Certificate | TPS255x UL Certificate of Compliance IEC 62368-1 (Rev. A) | 24 Jun 2024 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Design guide | 2-Port USB 3.0 Hub (TIDA-00287) | 01 Aug 2014 | ||
| User guide | Power-Distribution Switch with Adjustable Current-Limit EVM | 08 Oct 2008 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPS2553DBVEVM-364 — Power-Distribution Switch with Adjustable Current-Limit Evaluation Module for TPS2553DBVEVM-364
The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)
User guide: PDF
Evaluation board
TPS2553DRVEVM-364 — Power-Distribution Switch with Adjustable Current-Limit Evaluation Module for TPS2553DRVEVM-364
The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)
User guide: PDF
Simulation model
TPS2553 TINA-TI Transient Reference Design
SLVM869.TSC (140 KB) - TINA-TI Reference Design
Simulation model
TPS2553 Unencrypted PSpice Transient Model Package (Rev. B)
SLVM425B.ZIP (47 KB) - PSpice Model
Reference designs
TIDA-010008 — Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
This reference design features multiple approaches for protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
Reference designs
TIDM-HAHSCPTO — High Availability High Speed Counter (HSC) and Pulse Train Output (PTO) Reference Design
This reference design provides firmware and test platform for two different industrial input/output functions related to motion control: high-speed counter (HSC) and pulse-train output (PTO). The design is based on a microcontroller platform that is suitable for use in industrial applications (...)
Reference designs
TIDA-00287 — 2-Port USB 3.0 hub reference design
This verified reference design is a two-port, USB 3.0 compliant hub. It provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port and provides SuperSpeed, high-speed, full-speed, or low-speed connections on the downstream ports.
The hub design provides power (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
Ordering & quality
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Support & training
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