參數(shù)資料
型號: S-8324
廠商: Seiko Instruments Inc.
英文描述: CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關(guān)穩(wěn)壓器)
中文描述: 的CMOS PWM / PFM切換,控制升壓型開關(guān)穩(wěn)壓器的CMOS(PWM / PFM切換控制步升開關(guān)穩(wěn)壓器)
文件頁數(shù): 56/68頁
文件大小: 647K
代理商: S-8324
55
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:
What is the basic concept of the S-8323 peak current
Answer:
1.
Ipk in boosting
The basic concept is as follows:
Loss Pon of VIN due to il in the figure below is:
2
Ipk
×
fosc
×
L
×
2
1
=
Pon
Loss Pon of VIN due to i2 in the figure below is:
VIN
Vout
VIN
-
×
Ipk
×
fosc
×
L
×
2
1
=
Poff
2
Assuming that + is equal to energy Pout supplied from Vout,
Poff
+
Pon
=
Vout
×
Iout
VIN
Vout
1
×
Ipk
×
fosc
×
L
×
2
1
=
Iout
2
fosc
×
L
)
VIN
Vout
(
×
Iout
×
2
=
Ipk
-
-
相關(guān)PDF資料
PDF描述
S-8328 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關(guān)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(guān)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(guān)穩(wěn)壓器)
S-8340 PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開關(guān)穩(wěn)壓器-控制器)
S-8340A PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開關(guān)穩(wěn)壓器-控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S8324A10-8 制造商: 功能描述: 制造商:undefined 功能描述:
S-8324A27MC-EOH-T2 功能描述:DC/DC 開關(guān)控制器 SOT-23-5 2.7V 17uA RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK
S-8324A30MC-EOK-T2 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 REORD 628-8354H30MC 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
S-8324A33MC-EON-T2 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 SOT-23-5 3.3V 17uA 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
S-8324A50MC-EPE-T2 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 SOT-23-5 5.0V 17uA 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel