Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Linear- und Low-Dropout-Regler (LDO)

TPS7B70-Q1

AKTIV

300-mA-Spannungsregler für die Automobilindustrie, batteriebetrieben (40 V), niedrige Abfallspannung

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Datenblatt

TPS7B70-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Iq (typ) (mA) 0.019 Thermal resistance θJA (°C/W) 39.7 Rating Automotive Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Iq (typ) (mA) 0.019 Thermal resistance θJA (°C/W) 39.7 Rating Automotive Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Device Junction Temperature Range:
    –40°C to +150°C
  • Maximum Output Current: 300 mA
  • 4-V to 40-V Wide VIN Input-Voltage Range With up to 45-V Transients
  • Fixed 3.3-V and 5-V Outputs
  • Maximum Dropout Voltage: 400 mV at 300 mA
  • Stable With Output Capacitor in Wide Range of Capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)
  • Low Quiescent Current (I(Q))
    • < 4 µA When EN is Low (Shutdown Mode)
    • 19 µA Typical at Light Loads With VINT High
  • Fully Adjustable Power-Good Threshold and Power-Good Delay Timing
  • Low Input-Voltage Tracking to UVLO
  • Integrated Fault Protection
    • Overload Current-Limit Protection
    • Thermal Shutdown
  • 16-Pin HTSSOP PowerPAD™ Package
    • Thermal Resistance (RθJA): 39.7°C/W
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Device Junction Temperature Range:
    –40°C to +150°C
  • Maximum Output Current: 300 mA
  • 4-V to 40-V Wide VIN Input-Voltage Range With up to 45-V Transients
  • Fixed 3.3-V and 5-V Outputs
  • Maximum Dropout Voltage: 400 mV at 300 mA
  • Stable With Output Capacitor in Wide Range of Capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)
  • Low Quiescent Current (I(Q))
    • < 4 µA When EN is Low (Shutdown Mode)
    • 19 µA Typical at Light Loads With VINT High
  • Fully Adjustable Power-Good Threshold and Power-Good Delay Timing
  • Low Input-Voltage Tracking to UVLO
  • Integrated Fault Protection
    • Overload Current-Limit Protection
    • Thermal Shutdown
  • 16-Pin HTSSOP PowerPAD™ Package
    • Thermal Resistance (RθJA): 39.7°C/W

The TPS7B70-Q1 is a 300-mA, low-dropout linear regulator (LDO) that operates from an automotive battery. The device has only 19 µA of quiescent current at light loads. Thus, the TPS7B70-Q1 is an excellent selection to supply power to always-on components, such as microcontrollers (MCUs) and controller area network (CAN) transceivers.

The input voltage range of the TPS7B70-Q1 extends thru 40 V. This voltage helps the device withstand transient conditions, such as load-dump. The device also has a power good (PG) pin to tell the system when the output voltage is in regulation. To achieve the necessary operation, you can adjust the PG threshold voltage and delay. The threshold voltage of the PG signal is adjusted through external resistors. Adjust the delay with an external capacitor.

This device operates in ambient temperatures from –40°C to +125°C, and with junction temperatures from –40°C to +150°C. This device also has a thermally conductive package that enables sustained operation despite significant dissipation across the device, a typical property of off-battery operation. These features, along with included current limit and thermal shutdown protection, make the TPS7B70-Q1 an excellent selection to supply power to automotive system components.

The TPS7B70-Q1 is a 300-mA, low-dropout linear regulator (LDO) that operates from an automotive battery. The device has only 19 µA of quiescent current at light loads. Thus, the TPS7B70-Q1 is an excellent selection to supply power to always-on components, such as microcontrollers (MCUs) and controller area network (CAN) transceivers.

The input voltage range of the TPS7B70-Q1 extends thru 40 V. This voltage helps the device withstand transient conditions, such as load-dump. The device also has a power good (PG) pin to tell the system when the output voltage is in regulation. To achieve the necessary operation, you can adjust the PG threshold voltage and delay. The threshold voltage of the PG signal is adjusted through external resistors. Adjust the delay with an external capacitor.

This device operates in ambient temperatures from –40°C to +125°C, and with junction temperatures from –40°C to +150°C. This device also has a thermally conductive package that enables sustained operation despite significant dissipation across the device, a typical property of off-battery operation. These features, along with included current limit and thermal shutdown protection, make the TPS7B70-Q1 an excellent selection to supply power to automotive system components.
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Typ Titel Datum
* Data sheet TPS7B70-Q1 Automotive, 300-mA, 40-V, Low-IQ LDO With Power Good datasheet (Rev. A) PDF | HTML 29 Okt 2018
EVM User's guide TPS7B70EVM-008 Evaluation Module User's Guide 20 Apr 2018

Design und Entwicklung

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Evaluierungsplatine

TPS7B70EVM-008 — TPS7B70-Q1 Evaluierungsmodul für LDO-Linearregler, 300 mA 40 V mit niedrigem IQ

The TPS7B70EVM-008 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7B70-Q1, which is a 300-mA, 40-V, low-IQ, low-dropout (LDO) linear regulator with power good.

The EVM circuit board is configured to be a reference design for (...)

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