LP8728D-Q1 - Uncategorized TEXAS INSTRUMENTS - Free user manual and instructions
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| Product Type | Dual-Channel Step-Down Converter |
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage Range | 0.6 V to 3.3 V |
| Maximum Output Current Per Channel | 2 A |
| Switching Frequency | 2 MHz (typical) |
| Package Type | 16-pin WQFN (3 mm x 3 mm) |
| Operating Temperature Range | -40°C to +125°C |
| Enable Control | Independent EN pins for each channel |
| Soft Start | Internal 1 ms soft start |
| Protection Features | Overcurrent, overtemperature, undervoltage lockout |
| Power Dissipation | 1.5 W (at 25°C, derated above 70°C) |
| Dimensions (Package) | 3 mm x 3 mm x 0.75 mm |
| Weight | 40 mg (typical) |
| Automotive Qualification | AEC-Q100 qualified |
| Mounting Type | Surface Mount |
Frequently Asked Questions - LP8728D-Q1 TEXAS INSTRUMENTS
What is the LP8728D-Q1?
The LP8728D-Q1 is a dual-channel step-down converter from Texas Instruments, designed for automotive applications. It provides two independent output voltages from a single input supply.
What is the input voltage range?
The device operates with an input voltage range of 2.7 V to 5.5 V, making it suitable for 3.3 V and 5 V rails.
How much output current can each channel provide?
Each channel can deliver up to 2 A of continuous output current.
What is the switching frequency?
The LP8728D-Q1 switches at a fixed frequency of 2 MHz, allowing the use of small external components.
What package is available?
It comes in a 16-pin WQFN package measuring 3 mm x 3 mm, with an exposed thermal pad for heat dissipation.
Is this device automotive qualified?
Yes, it is AEC-Q100 qualified for automotive applications, with an operating temperature range of -40°C to +125°C.
What protection features are included?
The device includes overcurrent protection (OCP), overtemperature protection (OTP), and undervoltage lockout (UVLO).
How do I enable or disable each channel?
Each channel has a dedicated enable pin (EN1, EN2). Driving the pin high (>1.2 V) enables the output, while low disables it.
What output capacitors are recommended?
Use 22 µF ceramic capacitors with low ESR on each output. The input should have a 10 µF ceramic capacitor close to the IC.
Where can I find the datasheet?
The datasheet is available on the Texas Instruments website or through authorized distributors. Search for 'LP8728D-Q1' to download the PDF.
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USER MANUAL LP8728D-Q1 TEXAS INSTRUMENTS
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Product information
Brand : TEXAS INSTRUMENTS
Model : LP8728D-Q1
Category : Uncategorized