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參數(shù)資料
| 型號(hào)： | 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(kāi)關(guān)穩(wěn)壓器) |
| 中文描述： | 的CMOS PWM / PFM切換，控制升壓型開(kāi)關(guān)穩(wěn)壓器的CMOS（PWM / PFM切換控制步升開(kāi)關(guān)穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 36/68頁(yè) |
| 文件大?。?/td> | 647K |
| 代理商： | S-8324 |
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SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
S-8324/8328 Series
Seiko Instruments Inc.
35
Reference Data
Use reference data to choose the external parts.
Reference data give yor the procedure to choose the recommended external parts for various applications and its
characteristics data.
1. Procedure to choose the most suitable condition from reference data.
START
Choose the desired output voltage
Choose the condition for desired output current
Operation efficiency is
more important rather than
stand-by efficiency
*1
*2
*3
No
Yes
Choose the best condition for operation efficiency.
Stand-by
efficiency is OK
*4
Choose next best
condition for operation
efficiency
Choose the best condition for stand-by efficiency.
Operation efficiency is OK
*4
*4
Choose next best condition
for stand-by efficiency
No
*4
*5
Ripple voltage is OK
Increase output
current
Yes
*5
No
END
Yes
*4
*4
*1)
Choose desired output voltage from conditions (1) to (17) shown in Table 1 and 2.
When desired output voltage does not exist in Tables, choose the next higher voltage.
For instance, when V
OUT
=3V for S-8324, choose from conditions (3) to (6).
*2)
Choose all conditions from conditions choosed avobe for output current needed for input voltage (min) of the
operational condition from “Reference data 1 (a) output voltage characteristics for output current”.
For instance, when 10mA output current is needed at V
IN
=0.9V, choose from conditions (4) to (6).
*3)
Stand-by efficiency means the efficiency when the output current is small (approx. 100
μ
A), operation efficiency
means the efficiency when the output current is large (several mA).
For instance, go to “YES” when operation efficiency is more important rather than stand-by efficiency.
*4)
Read the efficiency for input voltage and output current in operational condition from “Reference data 1 (b)
efficiency characteristics for output current”.
For instance, when V
IN
=0.9V at I
OUT
=10mA, the efficiency is max. (75%) in condition (6) in conditions (4) to (6).
There is no difference between conditions (4) to (6) when the output current is 100
μ
A at stand-by condition.
Therefore, choose condition (6).
*5)
Read the ripple voltage under the operational condition selected above from “Reference data 2 ripple voltage
characteristics for output current”.
For instance, when condition (6) is selected above, the ripple voltage is mV at V
IN
=0.9V and I
OUT
=10mA.
No
Yes
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| S-8330 | Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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 |
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