TPL8556Q
42-V 500-mA Wide-Input Low Quiescent Current Low-Dropout Linear Regulator with Watchdog Timer
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Overview
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Development Resources
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Application
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Ordering Detail
Overview
The TPL8556Q series comprises wide-input LDO products with an integrated watchdog timer, capable of delivering up to 500 mA. These devices can operate within a voltage range from 4 V to 42 V, with a maximum transient voltage of 45 V. Their ability to function reliably with a minimum voltage of 4 V makes them suitable for cold-crank and start-stop scenarios.
The TPL8556Q series offers 5-V and 3.3-V fixed output voltage options, with a maximum shutdown current of only 2 μA. When the watchdog function is disabled, these devices have a low typical quiescent current of just 6 μA.
The TPL8556Q series features the window watchdog and the standard watchdog with an accurate watchdog period. The watchdog period, the window ratio, and the power-good reset threshold are fully adjustable through external configuration. Furthermore, these devices include integrated over-current and over-temperature protection. In terms of output capacitors, the TPL8556Q series is compatible with a broad range from 4.7 μF to 500 μF with an ESR range spanning from 0.001 Ω to 20 Ω.
With the features above, the TPL8556Q series is an ideal power supply for microprocessors in a reliable system.
The TPL8556Q series of products operate in the ambient temperature range from –40°C to +125°C. Additionally, the TPL8556Q series provides a thermal-enhanced ETSSOP28 package to enable sustained operation despite significant dissipation across the device.
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Status
Production
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Rating
Automotive
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Minimum Input Voltage (V)
4
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Maximum Input Voltage (V)
42
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Output Voltage (V)
Fixed (3.3, 5)
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Accuracy (max)
±2%
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Maximum Output Current (mA)
500
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Iq (mA)
0.006
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Dropout (mV)
440
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PSRR (dB)
50
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Noise (μVRMS)
/
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Temperature Range (°C)
-40 to +150
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Package
ETSSOP28
Development Resources
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Documentation
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Show FilterHidden FilterDocumentation
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Data Sheet
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Selection Guide
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Application Note
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Technical Note
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User Guide
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Test Report
- Document Name
- Type
- Language
- Date
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Selection GuideEnglish03/20/2024
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Data SheetEnglish10/05/2024
42-V 500-mA Wide-Input Low Quiescent Current Low-Dropout Linear Regulator with Watchdog Timer
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Selection GuideEnglish01/19/2024
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Application
• Automotive Clusters and Infotainment
• Automotive BCM and HVAC System
• Automotive Electric Gear Shifter
• Automotive Battery Management System
Ordering Detail
| Order Part Number | Buy | Samples | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time (week) | MSL | Packing | MPQ | CPQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPL855633Q-TSCR-S | Automotive Grade | / | Production | $1.850 | 2024-10-25 | ETSSOP28 | 9 | MSL3 | T&R | 2500 | 12500 | ||
| TPL855650Q-TSCR-S | Automotive Grade | / | Production | / | 2024-10-25 | ETSSOP28 | 14 | MSL3 | T&R | 2500 | 12500 |
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