參數(shù)資料
型號： S-8323
廠商： Seiko Instruments Inc.
英文描述： CMOS PWM-Control Step-Up Switching Regulator(Built-In Switch)(CMOS PFM（頻率脈沖調制）控制步升開關穩(wěn)壓器)
中文描述： 的CMOS脈寬調制控制升壓開關穩(wěn)壓器（內置開關）（烤瓷的CMOS（頻率脈沖調制）控制步升開關穩(wěn)壓器）
文件頁數(shù)： 65/65頁
文件大?。?/td> 569K
代理商： S-8323
64
Collection of Product FAQs
Author: Tachibana Midori
Date: 98/11/12 (Thursday) 10:17 (Modified: )
<Information level>
A:
Public (Printing O.K.)
Index:
B: Technical
<Product>
Division name: 01 IC
Category 1:
11 Power Supply
Category 2:
4. Switching Regulators
Cal No.:
S-8323/24/27/28
Related documents:
Question:
How can we ensure high efficiency
Answer:
Follow these instructions:
-
Make sure the allowable current (maximum rating) of the used coil is greater than the peak current of
the coil. (If the current exceeds the allowable value, efficiency decreases due to magnetic
saturation.)
-
Select an external diode with low VF characteristics and a short first-recovery time.
-
The equivalent series resistance (ESR) of the output capacitor, Cout, significantly affects efficiency.
Select a low ESR.
-
In the external-switching transistor type (S-8322 S-8327/8), the ON resistance varies with the base
resistance Rb (the resistance between the EXT terminal and the external transistor base), thereby
affecting efficiency. (Efficiency decreases as Rb increases.) It should also be noted that the current
consumption increases as the Rb value decreases, resulting in a decrease in efficiency.
<Remarks>
FAQ No.: 11S8323001
相關PDF資料
PDF描述
S-8327 CMOS PWM-Control Step-Up Switching Regulator(External Transistor)(CMOS PFM（頻率脈沖調制）控制步升開關穩(wěn)壓器)
S-8324 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關穩(wěn)壓器)
S-8328 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關穩(wěn)壓器)
S-8330 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開關穩(wěn)壓器)
S-8331 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開關穩(wěn)壓器)
相關代理商/技術參數(shù)
參數(shù)描述
S-8323A27MC-ELH-T2 功能描述:開關變換器、穩(wěn)壓器與控制器 REORD 628-8353A27MC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
S-8323A30MC-ELK-T2 功能描述:DC/DC 開關控制器 3.0V 17.2uA 2.4% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
S-8323A33MC-ELN-T2 功能描述:DC/DC 開關控制器 3.3V 19.1uA 2.4% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
S-8323A50MC-EME-T2 功能描述:開關變換器、穩(wěn)壓器與控制器 REORD 628-8353A50MC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
S8324A10-8 制造商: 功能描述: 制造商:undefined 功能描述:
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