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LP2985-N

現行

具啟用功能的 150-mA、16-V、低壓差電壓穩壓器

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LP2985 現行 具啟用功能的 150-mA、16-V、低壓差電壓穩壓器 Pin-to-pin equivalent for cost-sensitive applications
TPS709 現行 具反向電流保護的和啟用功能的 150-mA、30-V、超低 IQ、低壓降電壓穩壓器 Wider voltage range
引腳對引腳的功能與所比較的產品相同
TPS7A24 現行 具啟用功能的 200mA、18V、超低 IQ 低壓差 (LDO) 電壓穩壓器 Pin-to-pin option with ultra-low-IQ (2 uA)

LP2985-N

現行
產品規格表 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 16 Vin (min) (V) 2.2 Vout (max) (V) 6.1 Vout (min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 5.7, 6.1 Noise (µVrms) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 280 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 16 Vin (min) (V) 2.2 Vout (max) (V) 6.1 Vout (min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 5.7, 6.1 Noise (µVrms) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 280 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • V IN range: 2.5 V to 16 V
  • V OUT range (new chip):
    • 1.2 V to 5.0 V (fixed, 100-mV steps)
  • V OUT range (legacy chip): 2.5 V to 6.1 V
  • V OUT accuracy:
    • ±1% for A-grade legacy chip
    • ±1.5% for standard-grade legacy chip
    • ±0.5% for new chip only
  • Output accuracy over load, and temperature:
    • ±1% for new chip
  • Output current: Up to 150 mA
  • Low I Q (new chip): 71 µA at I LOAD = 0 mA
  • Low I Q (new chip): 750 µA at I LOAD = 150 mA
  • Shutdown current:
    • 0.05 µA (typ) for legacy chip
    • 1.12 µA (typ) for new chip
  • Low noise: 30 µV RMS with 10-nF bypass capacitor
  • Output current limiting and thermal protection
  • Stable with 2.2-µF ceramic capacitors
  • High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV) ultra-low dropout voltage
  • V IN range: 2.5 V to 16 V
  • V OUT range (new chip):
    • 1.2 V to 5.0 V (fixed, 100-mV steps)
  • V OUT range (legacy chip): 2.5 V to 6.1 V
  • V OUT accuracy:
    • ±1% for A-grade legacy chip
    • ±1.5% for standard-grade legacy chip
    • ±0.5% for new chip only
  • Output accuracy over load, and temperature:
    • ±1% for new chip
  • Output current: Up to 150 mA
  • Low I Q (new chip): 71 µA at I LOAD = 0 mA
  • Low I Q (new chip): 750 µA at I LOAD = 150 mA
  • Shutdown current:
    • 0.05 µA (typ) for legacy chip
    • 1.12 µA (typ) for new chip
  • Low noise: 30 µV RMS with 10-nF bypass capacitor
  • Output current limiting and thermal protection
  • Stable with 2.2-µF ceramic capacitors
  • High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV) ultra-low dropout voltage

The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985-N supports an output range of 1.2 V to 5.0 V (new chip) and 2.5 V to 6.1 V (legacy chip).

Additionally, the LP2985-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985-N is available in a 5-pin, 2.9-mm × 1.6-mm SOT-23 (DBV) package.

The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985-N supports an output range of 1.2 V to 5.0 V (new chip) and 2.5 V to 6.1 V (legacy chip).

Additionally, the LP2985-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985-N is available in a 5-pin, 2.9-mm × 1.6-mm SOT-23 (DBV) package.
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類型 標題 日期
* Data sheet LP2985-N 150-mA, Low-Noise, Low-Power, Ultra-Low-Dropout Regulator in a SOT-23 Package datasheet (Rev. AA) PDF | HTML 2023年 7月 14日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Technical article Trends in building automation: connected sensors for user comfort PDF | HTML 2016年 9月 2日
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 2013年 5月 6日
User guide AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A) 2013年 4月 30日
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) 2013年 4月 25日
White paper Engineers note: Capacitors are key to voltage regulator design 2002年 7月 1日

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LP2985_N_2P5 PSpice Transient Model

SNVM632.ZIP (40 KB) - PSpice Model
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LP2985_N_2P5 Unencrypted PSpice Transient Model

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SNVM633.ZIP (40 KB) - PSpice Model
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LP2985_N_5P0 Unencrypted PSpice Transient Model

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