Gehäuseinformationen
| Gehäuse | Pins VQFN-HR (RWY) | 9 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 3.000 | LARGE T&R |
Merkmale von TPS62811-Q1
- AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C TA
- Functional Safety-Capable
- Input voltage range: 2.75 V to 6 V
- Family of 1 A, 2 A, 3 A and 4 A
- Quiescent current 15-µA typical
- Output voltage from 0.6 V to 5.5 V
- Output voltage accuracy ±1% (PWM operation)
- Adjustable soft start
- Forced PWM or PWM and PFM operation
- Adjustable switching frequency of 1.8 MHz to 4 MHz
- Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
- 100% duty cycle mode
- Active output discharge
- Spread spectrum clocking - optional
- Power-good output with window comparator
- Package with wettable flanks
Beschreibung von TPS62811-Q1
The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This feature allows external sequencing of different supply rails and limiting the inrush current during start-up.
The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.