TPS78450 Series
Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Output Type▲▼ | Current - Output▲▼ | Voltage Dropout (Max)▲▼ | Control Features | Grade | Protection Features | Voltage - Output (Min/Fixed)▲▼ | Qualification | Package / Case | Output Configuration | PSRR▲▼ | PSRR▲▼ | Supplier Device Package | Mounting Type | Number of Regulators▲▼ | Voltage - Input (Max)▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS78450QWDRBRQ1Linear Voltage Regulator IC Positive Fixed 1 Output 300mA 8-SON (3x3) | 150 °C | -40 °C | 27.030000686645508 °C/W | 0.30000001192092896 A | 0.11500000208616255 V | Enable | Automotive | Over Current, Over Temperature | 5 V | AEC-Q100 | 8-VDFN Exposed Pad | Positive | 30 ul | 60 ul | 8-SON (3x3) | Surface Mount, Wettable Flank | 1 ul | 6 V |
Key Features
• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to +150°C, TJInput voltage range: 1.65 V to 6.0 VAvailable output voltages:Adjustable option: 1.2 V to 5.5 VFixed options: 0.65 V to 5.0 VOutput accuracy: 0.5% typical, 1.7% maximum50-dB PSRR out to 100 kHzLow IQ: 25 µA (typical)Ultra-low dropout:115 mV (max) at 300 mA (3.3 VOUT)Internal 500-µs soft-start time to reduce inrush currentActive output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designPackages:3-mm × 3-mm wettable flank VSON (8)5-pin SOT-23AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, TADevice junction temperature: –40°C to +150°C, TJInput voltage range: 1.65 V to 6.0 VAvailable output voltages:Adjustable option: 1.2 V to 5.5 VFixed options: 0.65 V to 5.0 VOutput accuracy: 0.5% typical, 1.7% maximum50-dB PSRR out to 100 kHzLow IQ: 25 µA (typical)Ultra-low dropout:115 mV (max) at 300 mA (3.3 VOUT)Internal 500-µs soft-start time to reduce inrush currentActive output dischargeFunctional Safety-CapableDocumentation available to aid functional safety system designPackages:3-mm × 3-mm wettable flank VSON (8)5-pin SOT-23
Description
AI
The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA 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 TPS784-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 TPS784-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 start up, reducing the inrush current and allowing for lower input capacitance to be used.
The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.
The TPS784-Q1 ultra low-dropout regulator (LDO) is a small, low quiescent current LDO that can source 300 mA 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 TPS784-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 TPS784-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 start up, reducing the inrush current and allowing for lower input capacitance to be used.
The TPS784-Q1 provides an active pulldown circuit to quickly discharge output loads when disabled.