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參數(shù)資料
| 型號(hào)： | S-8341A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM/PFM控制，高頻步升開(kāi)關(guān)穩(wěn)壓器-控制器) |
| 中文描述： | PWM / PFM切換控制高頻升壓型開(kāi)關(guān)穩(wěn)壓器控制器（PWM / PFM切換控制，高頻步升開(kāi)關(guān)穩(wěn)壓器-控制器） |
| 文件頁(yè)數(shù)： | 9/38頁(yè) |
| 文件大?。?/td> | 420K |
| 代理商： | S-8341A |
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PWM Control & PWM/PFM Control High-Frequency Step-Up Switching Regulator-Controllers
S-8340/8341 Series
Rev.1.00
Seiko Instruments Inc.
8
Conditions:
Peripheral components:
Coil
: Sumida Electric Co., Ltd. CD54 (10 H).
Diode
: Matsushita Electronics Corporation MA735 (Schottky type).
Capacitor
: Nichicon F93 (16 V, 47 F tantalum type).
Transistor
: Sanyo 2SD 1628G.
Base resistor (Rb)
: 1.0 k
Base capacitor (Cb)
: 2200 pF (Ceramic type)
CVREF
: 0.01 F
CSS
: 4700pF
RFB1
: 300k
RFB2
: 100k
CFB
: 50pF
The power-off pin is connected to VOUT, SENSE pin is connected to VSS, unless otherwise specified. .
Note 1:
Boot operation is performed from V
DD
=0.9 V. However, 2.5 V or more for VDD is recommended to stabilize the output
voltage and oscillation frequency. If V
DD
is taken from V
IN
or other power sources, instead of V
OUT
, V
DD
should be 2.5 V
or more. The output voltage precision is applicable when V
DD
is 4.0 V. It should be noted that if V
DD
is not 4.0 V, the
output voltage precision of 2.0% cannot be guaranteed due to dependency of output voltage on V
DD
. In particular,
accuracy of output voltage is degraded significantly when the V
DD
voltage is 6.0 V or more. If V
DD
of 2.5 V or more is
applied, increase power supply so that V
DD
becomes 2.5 V or more within the soft-start time (3 ms).
Measurement Circuits:
1.
+
+
CIN
L
RL
CL
Rb
Cb
SD
VIN
VDD
ON OFF
VSS
VOUT
EXT
CSS
CVREF
SENSE
V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-8341A25AFT-T2 | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2.5V Step-Up 2.0% 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-8341A25AFT-T2-G | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 2.5V Step-Up 2.0% 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-8341A30AFT-T2 | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 3.0V Step-Up 2.0% 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-8341A30AFT-T2-G | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 3.0V Step-Up 2.0% 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-8341A33AFT-T2 | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 3.3V Step-Up 2.0% 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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