參數(shù)資料
型號(hào)： S-8521F32MC-BPR-T2G
元件分類： 穩(wěn)壓器
英文描述： 0.05 A SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO5
封裝： LEAD FREE, SOT-23, 5 PIN
文件頁數(shù)： 8/44頁
文件大?。?/td> 511K
代理商： S-8521F32MC-BPR-T2G
STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8520/8521 Series
Rev.9.0_00
Seiko Instruments Inc.
16
Selection of Products and External Parts
1.
Method for selecting series products
The S-8520/8521 Series is classified into 12 types, according to the control systems (PWM control and PWM / PFM
switching control), the different oscillation frequencies, and set-up of an overload protection circuit. Please select
the type for your application according to the following features.
1. 1
Control systems
Two different control systems are available: PWM control system (S-8520 Series) and PWM / PFM switching
control system (S-8521 Series).
For applications for which the load current greatly differs between standby and operation, if the efficiency during
standby is important, applying the PWM/PFM switching system (S-8321 Series) realizes high efficiency during
standby.
For applications for which switching noise is critical, applying the PWM control system (S-8320 Series) whereby
switching frequency does not change due to load current allows the ripple voltage to be easily suppressed by
using a filter.
1. 2
Oscillation frequencies
Either oscillation frequency, 180 kHz (A and B types), 60 kHz (C and D types), or 300 kHz (E and F types), can
be selected.
The A, B, E and F types have high oscillation frequency, how ripple voltage and excellent transient response
characteristics. A small inductance can be used for these types because the peak current is low when inducing
the same load current. Use of small output capacitors is effective for downsizing devices.
The C and D types, whereby lower oscillation frequency realizes smaller self-consumption current, are highly
efficient under light loads. In particular, the D type, when combined with a PWM/PFM switching control system,
drastically improves the operation efficiency when the output load current is approximately 100 mA.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-8521F33MC-BPS-T2 功能描述:DC/DC 開關(guān)控制器 3.3V Step-Dn PWM/PFM 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-8521F33MC-BPST2G 功能描述:DC/DC 開關(guān)控制器 3.3V Step-Dn PWM/PFM 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-8521F34MC-BPTT2G 功能描述:DC/DC 開關(guān)控制器 Step Down SWR PWM/ PFM 300kHz 100uA Iq 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-8521F36MC-BPVT2G 功能描述:DC/DC 開關(guān)控制器 StepDOWN SWR PWM/PFM 300kHz 100uA Iq 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-8521F38MC-BPXT2U 功能描述:IC REG CTRLR BUCK SOT23-5 制造商:ablic u.s.a. inc. 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 輸出類型:晶體管驅(qū)動(dòng)器 功能:降壓 輸出配置:正 拓?fù)?降壓 輸出數(shù):1 輸出階段:1 電壓 - 電源（Vcc/Vdd）:2.5 V ~ 16 V 頻率 - 開關(guān):300kHz 占空比（最大）:1 同步整流器:無 時(shí)鐘同步:無 串行接口:- 控制特性:使能 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1
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