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線性與低壓差 (LDO) 穩壓器

LP5910

現行

具返馳電流保護和啟用功能的 300-mA 低雜訊低 IQ 低壓降電壓穩壓器

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產品規格表

LP5910

現行
產品規格表 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 3.3 Vin (min) (V) 1.3 Vout (max) (V) 1.8 Vout (min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.1, 1.2, 1.725, 1.8, 1.825 Noise (µVrms) 12 Iq (typ) (mA) 0.012 Thermal resistance θJA (°C/W) 79 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge, Reverse Current Protection Accuracy (%) 3 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 3.3 Vin (min) (V) 1.3 Vout (max) (V) 1.8 Vout (min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.1, 1.2, 1.725, 1.8, 1.825 Noise (µVrms) 12 Iq (typ) (mA) 0.012 Thermal resistance θJA (°C/W) 79 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output discharge, Reverse Current Protection Accuracy (%) 3 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
DSBGA (YKA) 4 0.788544 mm² 0.888 x 0.888 WSON (DRV) 6 4 mm² 2 x 2
  • Input voltage range: 1.3 V to 3.3 V
  • Output voltage range: 0.8 V to 2.3 V
  • Output current: 300 mA
  • PSRR: 75 dB at 1 kHz
  • Output voltage tolerance: ±2%
  • Low dropout: 120 mV (typical)
  • Very low IQ (enabled, no load): 12 µA
  • Low output-voltage noise: 12 µVRMS
  • Stable with ceramic input and output capacitors
  • Thermal overload protection
  • Short-circuit protection
  • Reverse current protection
  • Automatic output discharge for fast turnoff
  • Input voltage range: 1.3 V to 3.3 V
  • Output voltage range: 0.8 V to 2.3 V
  • Output current: 300 mA
  • PSRR: 75 dB at 1 kHz
  • Output voltage tolerance: ±2%
  • Low dropout: 120 mV (typical)
  • Very low IQ (enabled, no load): 12 µA
  • Low output-voltage noise: 12 µVRMS
  • Stable with ceramic input and output capacitors
  • Thermal overload protection
  • Short-circuit protection
  • Reverse current protection
  • Automatic output discharge for fast turnoff

The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement.

The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage.

When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff.

With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor. A separate noise bypass capacitor is not required.

This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement.

The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage.

When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff.

With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor. A separate noise bypass capacitor is not required.

This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.
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樣品供應情況

DRV 和 YKA 封裝完整推出。提供生產樣品。立即訂購

YCP 封裝處於預覽狀態。提供預生產樣品 (PLP5910-1.2PYCPR)。立即訂購

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類型 標題 日期
* Data sheet LP5910 300-mA Low-Noise, Low-IQ LDO datasheet (Rev. F) PDF | HTML 2021年 4月 23日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
Application note LDOs Thermal Performance in Small SMD Packages 2016年 4月 22日
EVM User's guide LP5910DRVEVM User's Guide 2015年 9月 25日
EVM User's guide LP5910YKAEVM User's Guide 2015年 9月 25日

設計與開發

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開發板

LP5910YKA18EVM — LP5910 YKA-1.8 300-mA 低雜訊低 IQ LDO 線性穩壓器評估模組

The Texas Instruments LP5910YKA18EVM evaluation module (EVM) helps designers evaluate the performance of the LP5910, 300mA, Ultra-low-Noise, Low-Dropout Linear Regulator. The EVM is a standalone evaluation module containing one positive voltage low-dropout regulator IC for fixed voltage regulation (...)

使用指南: PDF
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模擬型號

LP5910 PSpice Transient Model

SNVMBB6.ZIP (52 KB) - PSpice Model
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LP5910 Unencrypted PSpice Transient Model

SNVMBB7.ZIP (2 KB) - PSpice Model
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LP5910_0P9 PSpice Transient Model (Rev. A)

SNVMAP6A.ZIP (54 KB) - PSpice Model
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LP5910_0P9 Unencrypted PSpice Transient Model (Rev. A)

SNVMAP7A.ZIP (2 KB) - PSpice Model
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LP5910_1P0 PSpice Transient Model (Rev. A)

SNVMAF4A.ZIP (51 KB) - PSpice Model
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LP5910_1P0 Unencrypted PSpice Transient Model (Rev. A)

SNVMAF3A.ZIP (2 KB) - PSpice Model
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LP5910_1P1 PSpice Transient Model

SNVMAU6.ZIP (55 KB) - PSpice Model
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LP5910_1P1 Unencrypted PSpice Transient Model

SNVMAU5.ZIP (2 KB) - PSpice Model
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LP5910_1P2 PSpice Transient Model (Rev. A)

SNVMAE9A.ZIP (51 KB) - PSpice Model
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LP5910_1P2 Unencrypted PSpice Transient Model (Rev. A)

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LP5910_1P8 PSpice Transient Model (Rev. A)

SNVMAF1A.ZIP (50 KB) - PSpice Model
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LP5910_1P8 Unencrypted PSpice Transient Model (Rev. A)

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參考設計

TIDA-010057 — 超音波智慧探測器電源供應參考設計

Significant technological advancements and high degree of integration in Medical imaging, especially hand-held ultrasound smart probes, are pushing engineers to come up with highly-efficient, noise immune power solutions in a small size. This reference design documents end to end power and data (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00599 — 將 LP5910 和 TPS61221 作為電源的參考設計，適用於與超低電壓 MSP430 互動的產品

The MSP430X09X can operate form ultra-low voltages (ULV) in the range of 0.9V to 1.65V; however most of the devices in the system requires higher voltages. TIDA-00599 provides a solution for those companion devices that requires 1.8V and 3.3V input voltages.

A 3.3V voltage rail is generated from a (...)

Design guide: PDF
電路圖: PDF
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