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線性與低壓差 (LDO) 穩壓器

LP3990

現行

具有啟用功能與低 VOUT 的 150-mA 低 IQ 低壓降電壓穩壓器

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LP3990

現行
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產品詳細資料

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 1.2, 1.35, 1.5, 1.8, 2.5, 2.8, 3.3 Noise (µVrms) 150 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 54 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 1.2, 1.35, 1.5, 1.8, 2.5, 2.8, 3.3 Noise (µVrms) 150 Iq (typ) (mA) 0.043 Thermal resistance θJA (°C/W) 54 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 4 1.5625 mm² 1.25 x 1.25 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 WSON (NGG) 6 9 mm² 3 x 3
  • 1% Voltage Accuracy at Room Temperature
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • No Noise Bypass Capacitor Required
  • Thermal-Overload and Short-Circuit
    Protection
  • Input Voltage Range, 2 V to 6 V
  • Output Voltage Range, 0.8 V to 3.3 V
  • Output Current, 150 mA
  • Output Stable - Capacitors, 1 µF
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled), 43 µA
  • Low Output Noise, 150 µVRMS
  • PSRR, 55 dB at 1 kHz
  • Fast Start-Up, 105 µs
  • 1% Voltage Accuracy at Room Temperature
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • No Noise Bypass Capacitor Required
  • Thermal-Overload and Short-Circuit
    Protection
  • Input Voltage Range, 2 V to 6 V
  • Output Voltage Range, 0.8 V to 3.3 V
  • Output Current, 150 mA
  • Output Stable - Capacitors, 1 µF
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled), 43 µA
  • Low Output Noise, 150 µVRMS
  • PSRR, 55 dB at 1 kHz
  • Fast Start-Up, 105 µs

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to 125°C junction temperature range.

For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

Performance is specified for a –40°C to 125°C junction temperature range.

For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.
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類型 標題 日期
* Data sheet LP3990 150-mA Linear Voltage Regulator for Digital Applications datasheet (Rev. J) PDF | HTML 2014年 9月 26日

設計與開發

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模擬型號

LP3990_0P8 PSpice Transient Model

SNVMAX8.ZIP (67 KB) - PSpice Model
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模擬型號

LP3990_0P8 Unencrypted PSpice Transient Model

SNVMAX7.ZIP (2 KB) - PSpice Model
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模擬型號

LP3990_1P2 PSpice Transient Model

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LP3990_1P2 Unencrypted PSpice Transient Model

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模擬型號

LP3990_1P35 PSpice Transient Model

SNVMAX6.ZIP (69 KB) - PSpice Model
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LP3990_1P35 Unencrypted PSpice Transient Model

SNVMAX5.ZIP (2 KB) - PSpice Model
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模擬型號

LP3990_1P5 PSpice Transient Model

SNVMAY3.ZIP (70 KB) - PSpice Model
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LP3990_1P5 Unencrypted PSpice Transient Model

SNVMAY4.ZIP (2 KB) - PSpice Model
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模擬型號

LP3990_1P8 PSpice Transient Model

SNVMAY2.ZIP (69 KB) - PSpice Model
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模擬型號

LP3990_1P8 Unencrypted PSpice Transient Model

SNVMAY1.ZIP (2 KB) - PSpice Model
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模擬型號

LP3990_2P5 PSpice Transient Model

SNVMAY0.ZIP (70 KB) - PSpice Model
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模擬型號

LP3990_2P5 Unencrypted PSpice Transient Model

SNVMAX9.ZIP (2 KB) - PSpice Model
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模擬型號

LP3990_2P8 PSpice Transient Model

SNVMAY5.ZIP (71 KB) - PSpice Model
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模擬型號

LP3990_2P8 Unencrypted PSpice Transient Model

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參考設計

TIDA-00574 — Xilinx Zynq 7000 系列 5W 小型高效率低雜訊電源解決方案參考設計

The TIDA-00574 shows small solution size and high curren density & low noise power solution.  It supports internal sequencing and high output voltage accuracy.
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YZR) 4 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
WSON (NGG) 6 Ultra Librarian
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