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TPS78550QWDRBRQ1
Automotive, 1-A high-accuracy adjustable low-dropout (LDO) linear regulator
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Manufacturer:
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Mfr.Part #:
TPS78550QWDRBRQ1
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Datasheet:
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Output options:
Adjustable Output, Fixed Output
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Iout (max) (A):
1
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Vin (max) (V):
6
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Vin (min) (V):
1.7
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EDA/CAD Models:
Availability: 3049 PCS
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TPS78550QWDRBRQ1 General Description
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 1.7 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 a over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled start up 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.
Key Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Device junction temperature: –40°C to +150°C, TJ
- Input voltage range: 1.7 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
- Output accuracy: 0.5% typical, 1.7% maximum
- Low IQ: 25 µA (typical)
- Ultra-low dropout:
- 315 mV (max) at 1 A (3.3 VOUT)
- 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, RθJA = 31.6°C/W
Specifications
Output options | Adjustable Output, Fixed Output | Iout (max) (A) | 1 |
Vin (max) (V) | 6 | Vin (min) (V) | 1.7 |
Vout (max) (V) | 5.5 | Vout (min) (V) | 0.75 |
Fixed output options (V) | 0.75, 1, 1.1, 1.2, 1.8, 2.5, 3.3, 5 | Noise (µVrms) | 30 |
Iq (typ) (mA) | 0.025 | Thermal resistance θJA (°C/W) | 31.6, 50.3 |
TI functional safety category | Functional Safety-Capable | Rating | Automotive |
Load capacitance (min) (µF) | 1 | Regulated outputs (#) | 1 |
Features | Enable, Wettable flanks package | Accuracy (%) | 0.5 |
PSRR at 100 KHz (dB) | 45 | Dropout voltage (Vdo) (typ) (mV) | 315 |
Operating temperature range (°C) | -40 to 150 | feature-type | |
feature-number-of-outputs | 1 | feature-polarity | Positive |
feature-accuracy- | feature-process-technology | ||
feature-output-type | Fixed | feature-output-voltage-v | 5 |
feature-maximum-output-current-a | 1 | feature-minimum-input-voltage-v | 1.7 |
feature-maximum-input-voltage-v | 6 | feature-maximum-dropout-voltage-current-v | |
feature-line-regulation | feature-load-regulation | ||
feature-maximum-power-dissipation-mw | feature-packaging | ||
feature-rad-hard | feature-pin-count | 8 | |
feature-cecc-qualified | feature-esd-protection | ||
feature-escc-qualified | feature-military | No | |
feature-aec-qualified | Yes | feature-aec-qualified-number | AEC-Q100 |
feature-eccn-code | EAR99 | feature-svhc | |
feature-svhc-exceeds-threshold | No |
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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
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Availability: 3049 PCS
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