TPS7B4253 Series
Automotive 300-mA, off-battery (40-V), adjustable voltage-tracking low-dropout voltage regulator
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Output Configuration | Grade | Voltage - Output (Min/Fixed)▲▼ | Qualification | Current - Supply (Max)▲▼ | Protection Features | Voltage Dropout (Max)▲▼ | Voltage - Output (Max)▲▼ | Current - Quiescent (Iq)▲▼ | Mounting Type | Number of Regulators▲▼ | PSRR▲▼ | Supplier Device Package | Current - Output▲▼ | Package / Case▲▼ | Package / Case | Package / Case▲▼ | Output Type | Control Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS7B4253QPWPRQ1Linear Voltage Regulator IC Positive Adjustable 1 Output 300mA 20-HTSSOP | Positive | Automotive | 1.5 V | AEC-Q100 | 0.00039999998989515007 A | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) | 0.5199999809265137 V | 40 V | 0.000018000000636675395 A | Surface Mount | 1 ul | 70 ul | 20-HTSSOP | 0.30000001192092896 A | 0.004394200164824724 m | 20-PowerTSSOP | 0.004399999976158142 m | Adjustable | 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.