TPS7B4254QDDARQ1
ActiveAUTOMOTIVE 150-MA, OFF-BATTERY (40-V), ADJUSTABLE VOLTAGE-TRACKING LOW-DROPOUT VOLTAGE REGULATOR
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TPS7B4254QDDARQ1
ActiveAUTOMOTIVE 150-MA, OFF-BATTERY (40-V), ADJUSTABLE VOLTAGE-TRACKING LOW-DROPOUT VOLTAGE REGULATOR
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS7B4254QDDARQ1 |
|---|---|
| Current - Output | 150 mA |
| Current - Quiescent (Iq) | 100 µA |
| Current - Supply (Max) [Max] | 260 µA |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 8-PowerSOIC (0.154", 3.90mm Width) |
| Protection Features | Over Current, Reverse Polarity, Short Circuit, Over Temperature |
| PSRR | 70 dB |
| Qualification | AEC-Q100 |
| Supplier Device Package | 8-SO PowerPad |
| Voltage - Output (Max) [Max] | 40 V |
| Voltage - Output (Min/Fixed) | 2 V |
| Voltage Dropout (Max) [Max] | 0.26 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.04 | |
| 10 | $ 1.83 | |||
| 25 | $ 1.73 | |||
| 100 | $ 1.47 | |||
| 250 | $ 1.38 | |||
| 500 | $ 1.21 | |||
| 1000 | $ 1.00 | |||
| Digi-Reel® | 1 | $ 2.04 | ||
| 10 | $ 1.83 | |||
| 25 | $ 1.73 | |||
| 100 | $ 1.47 | |||
| 250 | $ 1.38 | |||
| 500 | $ 1.21 | |||
| 1000 | $ 1.00 | |||
| N/A | 3295 | $ 2.18 | ||
| Tape & Reel (TR) | 2500 | $ 0.93 | ||
| 5000 | $ 0.90 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.53 | |
| 100 | $ 1.26 | |||
| 250 | $ 0.91 | |||
| 1000 | $ 0.68 | |||
Description
General part information
TPS7B4254 Series
For automotive off-board sensors and low-current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require a power supply as consistent as that for onboard components to secure high accuracy of data acquisition.
The TPS7B4254-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or as a voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.
To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under a reverse-polarity condition. The TPS7B4254-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.
Documents
Technical documentation and resources
