TPS7B7702-Q1

ACTIVE

Automotive 300-mA, off-battery (40-V), dual-channel adjustable antenna low-dropout voltage regulator

TPS7B7702-Q1

ACTIVE

Product details

Output options Adjustable Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 20 Vout (min) (V) 1.5 Iq (typ) (mA) 0.6 Thermal resistance θJA (°C/W) 38.5 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Adjustable current limit, Current sense, Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Accuracy (%) 2 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 350 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 20 Vout (min) (V) 1.5 Iq (typ) (mA) 0.6 Thermal resistance θJA (°C/W) 38.5 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Adjustable current limit, Current sense, Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Accuracy (%) 2 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 350 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 2
    • Device CDM ESD Classification C4B
  • Single and Dual-Channel LDO With Current Sense and Adjustable Current-Limit
  • 4.5-V to 40-V Wide Input Voltage Range, 45-V Load Dump
  • Power Switch Mode When Tying FB to GND
  • 1.5-V to 20-V Adjustable Output Voltage
  • Up to 300-mA Output Current per Channel
  • Adjustable Current-Limit With External Resistor
  • High Accuracy Current-Sense to Detect Antenna Open Condition at Low Current Without Further Calibration
  • High Power-Supply Rejection Ratio: Typical 73 dB at 100 Hz
  • Integrated Reverse-Polarity Protection, Down to –40 V and No Need for External Diode
  • 500-mV Max Dropout Voltage at 100-mA Load
  • Stable With Output Capacitor in 2.2-µF to 100-µF Range (ESR 1 mΩ to 5 Ω)
  • Integrated Protection and Diagnostics
    • Thermal Shutdown
    • Undervoltage Lockout (UVLO)
    • Short-Circuit Protection
    • Reverse Battery Polarity Protection
    • Reverse-Current Protection
    • Output Short-to-Battery Protection
    • Output Inductive Load Clamp
    • Multiplexing Current Sense Between Channels and Devices
    • Ability to Distinguish All Faults With Current Sense
  • 16-Pin HTSSOP PowerPAD™ Package
  • 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 2
    • Device CDM ESD Classification C4B
  • Single and Dual-Channel LDO With Current Sense and Adjustable Current-Limit
  • 4.5-V to 40-V Wide Input Voltage Range, 45-V Load Dump
  • Power Switch Mode When Tying FB to GND
  • 1.5-V to 20-V Adjustable Output Voltage
  • Up to 300-mA Output Current per Channel
  • Adjustable Current-Limit With External Resistor
  • High Accuracy Current-Sense to Detect Antenna Open Condition at Low Current Without Further Calibration
  • High Power-Supply Rejection Ratio: Typical 73 dB at 100 Hz
  • Integrated Reverse-Polarity Protection, Down to –40 V and No Need for External Diode
  • 500-mV Max Dropout Voltage at 100-mA Load
  • Stable With Output Capacitor in 2.2-µF to 100-µF Range (ESR 1 mΩ to 5 Ω)
  • Integrated Protection and Diagnostics
    • Thermal Shutdown
    • Undervoltage Lockout (UVLO)
    • Short-Circuit Protection
    • Reverse Battery Polarity Protection
    • Reverse-Current Protection
    • Output Short-to-Battery Protection
    • Output Inductive Load Clamp
    • Multiplexing Current Sense Between Channels and Devices
    • Ability to Distinguish All Faults With Current Sense
  • 16-Pin HTSSOP PowerPAD™ Package

The TPS7B770x-Q1 family of devices feature a single and dual, high-voltage low-dropout regulator (LDO) with current sensing, designed to operate with a wide input-voltage range from 4.5 V to 40 V (45-V load dump protection). These devices provide power to the low-noise amplifiers of the active antenna through a coax cable with 300 mA per channel current. Each channel also provides an adjustable output voltage from 1.5 V to 20 V.

These devices provide diagnostics through the current sense and error pins. To monitor the load current, a high-side current-sense circuitry provides a proportional analog output to the sensed load current. The accurate current sense allows detection of open, normal, and short-circuit conditions without the need for further calibration. Current sense can be multiplexed between channels and devices to save analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limit with an external resistor.

An integrated reverse polarity diode eliminates the need for an external diode. These devices feature standard thermal shutdown, short-to-battery protection on the output, and reverse current protection. Each channel has internal inductive clamp protection on the output during inductive switch off.

These devices operate over a –40°C to +125°C ambient temperature range.

The TPS7B770x-Q1 family of devices feature a single and dual, high-voltage low-dropout regulator (LDO) with current sensing, designed to operate with a wide input-voltage range from 4.5 V to 40 V (45-V load dump protection). These devices provide power to the low-noise amplifiers of the active antenna through a coax cable with 300 mA per channel current. Each channel also provides an adjustable output voltage from 1.5 V to 20 V.

These devices provide diagnostics through the current sense and error pins. To monitor the load current, a high-side current-sense circuitry provides a proportional analog output to the sensed load current. The accurate current sense allows detection of open, normal, and short-circuit conditions without the need for further calibration. Current sense can be multiplexed between channels and devices to save analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limit with an external resistor.

An integrated reverse polarity diode eliminates the need for an external diode. These devices feature standard thermal shutdown, short-to-battery protection on the output, and reverse current protection. Each channel has internal inductive clamp protection on the output during inductive switch off.

These devices operate over a –40°C to +125°C ambient temperature range.

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Technical documentation

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Type Title Date
* Data sheet TPS7B770x-Q1, Automotive, Single- and Dual-Channel Antenna LDO With Current Sense datasheet (Rev. C) PDF | HTML 12 Sep 2018
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dec 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dec 2022
Application note TPS7B7702-Q1 Short Circuit Test Report 28 Feb 2020
Functional safety information TPS7B770x-Q1 Functional Safety FIT Rate and Failure Mode Distribution 17 Dec 2019
Technical article LDO Basics: Preventing reverse current PDF | HTML 25 Jul 2018
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 27 Feb 2017
EVM User's guide TPS7B7702-Q1 Evaluation Module User's Guide (Rev. A) 08 Mar 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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User guide: PDF
Not available on TI.com
Evaluation board

TPS7B7702EVM — TPS7B7702-Q1 dual-channel antenna LDO linear regulator evaluation module

The TPS7B7702EVM evaluation module (EVM) helps designers evaluate the operation and performance of TPS7B7702QPWPRQ1 antenna LDO. The TPS7B7702-Q1 is a monolithic integrated dual channel LDO with current sense in an HTSSOP package. The device is designed to provide a power (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7B7702-Q1 PSpice Transient Model (Rev. A)

SLVMAT8A.ZIP (208 KB) - PSpice Model
Simulation model

TPS7B7702-Q1 TINA-TI Reference Design

SLVMBE6.TSC (269 KB) - TINA-TI Reference Design
Simulation model

TPS7B7702-Q1 TINA-TI Transient Spice Model

SLVMBE5.ZIP (89 KB) - TINA-TI Spice Model
Simulation model

TPS7B7702-Q1 Unencrypted PSpice Transient Model

SLVMBE4.ZIP (11 KB) - PSpice Model
Calculation tool

PARALLEL-LDO-CALC Parallel low-dropout (LDO) calculator

The parallel low-dropout (LDO) calculator is a Microsoft® Excel®-based tool that provides worst-case analysis for parallel LDO regulators using ballast resistors. The tool helps the user identify the minimum number of parallel LDO regulators required and optimum ballast resistance for a (...)

Supported products & hardware

Supported products & hardware

Products
Linear & low-dropout (LDO) regulators
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Hardware development
Evaluation board
TPS7A57EVM-081 TPS7A57 evaluation module for 5-A low-noise high-accuracy low-dropout (LDO) voltage regulator
Reference designs

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Design guide: PDF
Schematic: PDF
Package Pins Download
HTSSOP (PWP) 16 View options

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