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線性與低壓差 (LDO) 穩壓器

TPS7B87-Q1

現行

具有電源良好指示的車用 500mA、40V 低壓差 (LDO) 穩壓器

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產品規格表

TPS7B87-Q1

現行
產品規格表 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 252 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 29.7 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Power good Accuracy (%) 0.85 PSRR at 100 KHz (dB) 70 Dropout voltage (Vdo) (typ) (mV) 360 Operating temperature range (°C) -40 to 150
Output options Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 252 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 29.7 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Power good Accuracy (%) 0.85 PSRR at 100 KHz (dB) 70 Dropout voltage (Vdo) (typ) (mV) 360 Operating temperature range (°C) -40 to 150
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 TO-252 (KVU) 5 66.726 mm² 6.6 x 10.11
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range: 3.3 V and 5 V (fixed)
  • Maximum output current: 500 mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475 mV (max) at 450 mA
  • Low quiescent current:
    • 17 µA (typ) at light loads
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2-µF or larger capacitor
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Package options:
    • 5-pin TO-252 package: 29.7°C/W RθJA
    • 8-pin HSOIC-8 package with thermal pad: 41.8°C/W RθJA
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range: 3.3 V and 5 V (fixed)
  • Maximum output current: 500 mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475 mV (max) at 450 mA
  • Low quiescent current:
    • 17 µA (typ) at light loads
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2-µF or larger capacitor
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Package options:
    • 5-pin TO-252 package: 29.7°C/W RθJA
    • 8-pin HSOIC-8 package with thermal pad: 41.8°C/W RθJA

The TPS7B87-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17-µA quiescent current at light loads, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.85% over line, load, and temperature.

The power-good delay can be adjusted by external components, allowing the delay time to be configured to fit application-specific systems.

The device is available in thermally conductive packaging to allow the device to efficiently transfer heat to the circuit board.

The TPS7B87-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17-µA quiescent current at light loads, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.85% over line, load, and temperature.

The power-good delay can be adjusted by external components, allowing the delay time to be configured to fit application-specific systems.

The device is available in thermally conductive packaging to allow the device to efficiently transfer heat to the circuit board.
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* Data sheet TPS7B87-Q1 500-mA, 40-V, Low-Dropout Regulator With Power-Good datasheet (Rev. A) PDF | HTML 2021年 4月 30日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

MLTLDO2EVM-037 — 適用於 DCY、DDA 和 KVU 封裝的通用 LDO 線性電壓穩壓器評估模組

MLTLDO2EVM-037 多重封裝低壓差 (LDO) 評估模組 (EVM) 可讓設計工程師評估多種常用線性穩壓器封裝的運作情形及性能，以利在自己的電路應用中使用。此 EVM 配置包含 DDA、3 針腳和 5 針腳 KVU，以及用於工程師焊接和評估其零件的 DCY 封裝板上配置。

使用指南: PDF
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模擬型號

TPS7B87-Q1 PSpice Transient Model (3.3-V Output)

SBVM971.ZIP (12 KB) - PSpice Model
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模擬型號

TPS7B87-Q1 PSpice Transient Model (5-V Output)

SBVM972.ZIP (12 KB) - PSpice Model
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封裝 引腳 下載
HSOIC (DDA) 8 檢視選項
TO-252 (KVU) 5 檢視選項
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