PTPS78550QWDRBRQ1 ACTIVE

Features for the TPS785-Q1

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to +125°C, T_A
• Device junction temperature: –40°C to +150°C, T_J
• Input voltage range: 1.65 V to 6.0 V
• Available output voltages:
  • Adjustable option: 1.2 V to 5.5 V
  • Fixed options: 0.65 V to 5.0 V
    • 1.8 V and 3.3 V fixed outputs available
• Output accuracy: 0.75% typical, 1.5% maximum
• Low I_Q: 25 µA (typical)
• Ultra-low dropout:
  • 315 mV (max) at 1 A (3.3 V_OUT)
• Internal 550 µs soft-start time to reduce inrush current
• Active output discharge
• Packages:
  • 3-mm × 3-mm wettable flank VSON (8)
  • 5-pin TO-252

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Description for the TPS785-Q1

The TPS785-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 1 A with excellent line and load transient performance.

The low output noise and great PSRR performance make the device suitable to power-sensitive analog loads. The TPS785-Q1 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V. The device also features fixed output voltages from 0.65 V to 5.0 V for powering common voltage rails.

The TPS785-Q1 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled startup reducing the inrush current allowing for lower input capacitance to be used.

The TPS785-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.