データシートサーチシステム |
|
SI91842DT-26-T1 データシート(PDF) 1 Page - Vishay Siliconix |
|
SI91842DT-26-T1 データシート(HTML) 1 Page - Vishay Siliconix |
1 / 9 page Si91842/4 Vishay Siliconix New Product Document Number: 71732 S-20478—Rev. C, 01-Apr-02 www.vishay.com 1 150-mA Low-Noise LDO Regulator With Error Flag and Discharge Option FEATURES D Ultra Low Dropout—130 mV at 150-mA Load D Low Noise—75 mV(rms) (10-Hz to 100-kHz Bandwidth) D Out-of-Regulation Error Flag (power good) D Shutdown Control D 110-mA Ground Current at 150-mA Load D Fast Start-Up (50 mS) D 1.5% Guaranteed Output Voltage Accuracy (1.2 V, 2%) D 300-mA Peak Output Current Capability D Uses Low ESR Ceramic Capacitors D Fast Line and Load Transient Response (v 30 ms) D 1-mA Maximum Shutdown Current D Output Current Limit D Reverse Battery Protection D Built-in Short Circuit and Thermal Protection D Si91842: Output—Auto-Discharge In Shutdown Mode D Si91844: Output—No-Discharge In Shutdown Mode D Fixed 1.2, 1.8, 2.0, 2.2, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.3, 3.5, 3.6, 5.0-V Output Voltage Options D SOT23-5 Package APPLICATIONS D Cellular Phones, Wireless Handsets D Noise-Sensitive Electronic Systems, Laptop and Palmtop Computers D PDAs D Pagers D Digital Cameras D MP3 Player D Wireless Modem DESCRIPTION The Si91842/4 is a 150-mA CMOS LDO (low dropout) voltage regulator. It is the perfect choice for low voltage, low power applications. An ultra low ground current and ultra fast turn-on make this part attractive for battery operated power systems. The Si91842/4 also offers ultra low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source will benefit from the Si91842/4’s low output noise. The Si91842/4 is designed to maintain regulation while delivering 300-mA peak current, making it ideal for systems that have a high surge current upon turn-on. For better transient response and regulation, an active pull-down circuit is built into the Si91842/4 to clamp the output voltage when it rises beyond normal regulation. The Si91842 automatically discharges the output voltage by connecting the output to ground through a 100- W n-channel MOSFET when the device is put in shutdown mode. The Si91842/4 features reverse battery protection to limit reverse current flow to approximately 1- mA in the event reversed battery is applied at the input, thus preventing damage to the IC. TYPICAL APPLICATION CIRCUIT 3 2 Si91842/4 1 4 5 VIN GND SD VOUT ERROR VIN SD VOUT 1 mF 1 mF 51 k W 5 ERROR SOT-23, 5-Lead |
同様の部品番号 - SI91842DT-26-T1 |
|
同様の説明 - SI91842DT-26-T1 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |