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線性與低壓差 (LDO) 穩壓器
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線性與低壓差 (LDO) 穩壓器

LP2951-Q1

現行

具有 Power Good 和啟用功能的車用 100mA 30V 低壓差電壓穩壓器

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產品規格表

LP2951-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) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Rating Automotive Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Rating Automotive Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (DRG) 8 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
    • Temperature grade 1: −40°C to +125°C, TJ
  • Wide input voltage range
    • VIN range (new chip): 2V to 30V
  • Wide output voltage range VOUT
    • Fixed option: 3.3V, 5.0V
    • Adjustable option: 1.2V to 29V
  • Output current: Up to 100mA
  • VOUT accuracy:
    • ±2% over line, load, and temperature for legacy chip
    • ±1% over line, load, and temperature for new chip
  • Quiescent current IQ (new chip): 50µA (typical)
  • Low dropout: 340mV (typical) for new chip
  • Output current limiting and thermal shutdown
  • Open-drain error output
  • Stable over a wide range of ceramic output capacitor values:
    • CL range: 1µF to 100µF (new chip)
    • ESR range: 0Ω to 2Ω (new chip)
  • Package options:
    • D (8-pin SOIC)
    • DRG (8-pin WSON)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
    • Temperature grade 1: −40°C to +125°C, TJ
  • Wide input voltage range
    • VIN range (new chip): 2V to 30V
  • Wide output voltage range VOUT
    • Fixed option: 3.3V, 5.0V
    • Adjustable option: 1.2V to 29V
  • Output current: Up to 100mA
  • VOUT accuracy:
    • ±2% over line, load, and temperature for legacy chip
    • ±1% over line, load, and temperature for new chip
  • Quiescent current IQ (new chip): 50µA (typical)
  • Low dropout: 340mV (typical) for new chip
  • Output current limiting and thermal shutdown
  • Open-drain error output
  • Stable over a wide range of ceramic output capacitor values:
    • CL range: 1µF to 100µF (new chip)
    • ESR range: 0Ω to 2Ω (new chip)
  • Package options:
    • D (8-pin SOIC)
    • DRG (8-pin WSON)

The LP2951-Q1 is a wide input low-dropout regulator (LDO) supporting an input voltage range from 2V to 30V and can supply up to 100mA of load current. The LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 gives 3.3V or 5V fixed output voltages. Alternatively, leave the SENSE and VTAP pins open and connect FEEDBACK to an external resistor divider. This configuration allows the output to be set to any value between 1.2V to 29V.

The LP2951-Q1 has a ERROR output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The SHUTDOWN input and ERROR output are used for sequencing multiple power supplies in the system.

The LP2951-Q1 is a wide input low-dropout regulator (LDO) supporting an input voltage range from 2V to 30V and can supply up to 100mA of load current. The LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 gives 3.3V or 5V fixed output voltages. Alternatively, leave the SENSE and VTAP pins open and connect FEEDBACK to an external resistor divider. This configuration allows the output to be set to any value between 1.2V to 29V.

The LP2951-Q1 has a ERROR output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The SHUTDOWN input and ERROR output are used for sequencing multiple power supplies in the system.
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類型 標題 日期
* Data sheet LP2951-Q1 Automotive, Adjustable Micropower Voltage Regulator With Shutdown datasheet (Rev. H) PDF | HTML 2024年 11月 8日
Functional safety information LP2951-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 2024年 11月 7日
EVM User's guide LP2951 EVM User's Guide (Rev. A) 2018年 1月 5日

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開發板

LP2951EVM — LP2951 固定/可調整微功耗低壓差 (LDO) 穩壓器評估模組

The LP2951 devices are bipolar low-dropout (LDO) voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V with an output load up to 100 mA. The LP2951EVM allows for flexibility in design, allowing the user to add or remove input and output capacitors, as well as (...)
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模擬型號

LP2951-50 PSpice Transient Model

SLVMA10.ZIP (24 KB) - PSpice Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian
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