- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄374713 > SC1173CSW (Semtech Corporation) Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection PDF資料下載
參數(shù)資料
| 型號(hào)： | SC1173CSW |
| 廠商： | Semtech Corporation |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無(wú)電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護(hù) |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 119K |
| 代理商： | SC1173CSW |
PROGRAMMABLE SYNCHRONOUS DC/DC
CONVERTER WITH LOW DROPOUT
REGULATOR CONTROLLER
SC1172/3
1999 SEMTECH CORP.
October 25, 1999
652 MITCHELL ROAD NEWBURY PARK CA 91320
9
Vout
5V
+
+
4) The Output Capacitor(s) (Cout) should be located
as close to the load as possible, fast transient load
currents are supplied by Cout only, and connections
between Cout and the load must be short, wide cop-
per areas to minimize inductance and resistance.
5) The SC1172/3 is best placed over a quite ground
plane area, avoid pulse currents in the Cin, Q1, Q2
loop flowing in this area. PGNDH and PGNDL should
be returned to the ground plane close to the package.
The AGND pin should be connected to the ground
side of (one of) the output capacitor(s). If this is not
possible, the AGND pin may be connected to the
ground path between the Output Capacitor(s) and the
Cin, Q1, Q2 loop. Under no circumstances should
AGND be returned to a ground inside the Cin, Q1, Q2
loop.
6) Vcc for the SC1172/3 should be supplied from the
5V supply through a 10
resistor, the Vcc pin should
be decoupled directly to AGND by a 0.1
μ
F ceramic
capacitor, trace lengths should be as short as possi-
ble.
7) The Current Sense resistor and the divider across
it should form as small a loop as possible, the traces
running back to CS+ and CS- on the SC1172/3 should
run parallel and close to each other. The 0.1
μ
F ca-
pacitor should be mounted as close to the CS+ and
CS- pins as possible.
8) Ideally, the ground for the LDO section should be
returned to the ground side of (one of) the switching
section output capacitor(s).
Currents in various parts of the power section
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC1173 | Programmable Synchronous DC/DC Converter With LDO Controller(兼有可編程同步DC/DC控制器和可調(diào)輸出低壓差穩(wěn)壓器) |
| SC1175 | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW.TR | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175EVB-1 | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1175 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175_04 | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW TR | 制造商:Semtech Corporation 功能描述:Voltage Mode PWM Controller 2.75V 1A 20-Pin SOIC T/R |
| SC1175CSW.TR | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。