TPS7B4253-Q1 Series
Automotive 300-mA, off-battery (40-V), adjustable voltage-tracking low-dropout voltage regulator
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Automotive 300-mA, off-battery (40-V), adjustable voltage-tracking low-dropout voltage regulator
| Part | Protection Features | Package / Case [custom] | Package / Case | Package / Case [custom] | Qualification | Supplier Device Package | Grade | Mounting Type | Output Configuration | Current - Output | Current - Supply (Max) [Max] | Current - Quiescent (Iq) | Voltage - Output (Max) [Max] | Voltage Dropout (Max) [Max] | PSRR | Output Type | Number of Regulators | Voltage - Output (Min/Fixed) | Control Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS7B4253QDDARQ1 | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) | 3.9 mm | 8-PowerSOIC | 0.154 in | AEC-Q100 | 8-SO PowerPad | Automotive | Surface Mount | Positive | 300 mA | 400 µA | 18 µA | 40 V | 0.52 V | 70 dB | Adjustable | 1 | 1.5 V | |
Texas Instruments TPS7B4253QPWPRQ1 | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) | 4.4 mm | 20-PowerTSSOP | 0.173 in | AEC-Q100 | 20-HTSSOP | Automotive | Surface Mount | Positive | 300 mA | 400 µA | 18 µA | 40 V | 0.52 V | 70 dB | Adjustable | 1 | 1.5 V | Enable |
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 3ADevice CDM ESD Classification Level C6–40 to 45-V Wide Input-Voltage Range (Maximum)Output Voltage Adjusts Down to:1.5 to 40 V (HTSSOP)2 to 40 V (SO PowerPAD™)300-mA Output Current CapabilityVery-Low Output Tracking Tolerance, ±4 mV320-mV Low Dropout Voltage when IOUT= 200 mASeparate Pins for Enable and Tracking Inputs (HTSSOP only)Low Quiescent Current (IQ):< 4 µA when EN = LOW60 µA (Typical) at Light LoadsExtremely Wide ESR Range.Stable With 10- to 500-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 ΩReverse Polarity ProtectionCurrent-Limit and Thermal-Shutdown ProtectionOutput Short-Circuit Proof to Ground and SupplyInductive Clamp at OUT PinAvailable in the Following Packages:8-Pin SO PowerPAD Package20-Pin HTSSOP PackageQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level 3ADevice CDM ESD Classification Level C6–40 to 45-V Wide Input-Voltage Range (Maximum)Output Voltage Adjusts Down to:1.5 to 40 V (HTSSOP)2 to 40 V (SO PowerPAD™)300-mA Output Current CapabilityVery-Low Output Tracking Tolerance, ±4 mV320-mV Low Dropout Voltage when IOUT= 200 mASeparate Pins for Enable and Tracking Inputs (HTSSOP only)Low Quiescent Current (IQ):< 4 µA when EN = LOW60 µA (Typical) at Light LoadsExtremely Wide ESR Range.Stable With 10- to 500-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 ΩReverse Polarity ProtectionCurrent-Limit and Thermal-Shutdown ProtectionOutput Short-Circuit Proof to Ground and SupplyInductive Clamp at OUT PinAvailable in the Following Packages:8-Pin SO PowerPAD Package20-Pin HTSSOP Package
Description
AI
For automotive off-board sensors and small 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 consistent power supply as onboard components to secure high accuracy of data acquisition.
The TPS7B4253-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 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 reverse polarity condition. The TPS7B4253-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.
For automotive off-board sensors and small 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 consistent power supply as onboard components to secure high accuracy of data acquisition.
The TPS7B4253-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 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 reverse polarity condition. The TPS7B4253-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.