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參數(shù)資料
| 型號(hào)： | SPX2941T5 |
| 元件分類： | 線性穩(wěn)壓 |
| 英文描述： | 1A Low Dropout Voltage Regulators |
| 中文描述： | 1A低壓降穩(wěn)壓器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 103K |
| 代理商： | SPX2941T5 |
3
Date: 08/25/04
SPX2941 1A Low Dropout Voltage Regulator
Copyright 2004 Sipex Corporation
NOTE 1: Dropout voltage is defined as the input to output differential at which the output voltage drops to 99%
of its nominal value.
NOTE 2: V
IN=VOUT(NOMINAL)+1V; for example, VIN=4.3V for a 3.3V regulator. Employ pulse-testing procedures to
minimize temperature rise.
NOTE 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the
sum of the load and ground currents.
NOTE 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power
dissipation is applied, excluding load or line regulation effects.
NOTE 5: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the
nominal reference voltage measured 6V input. To express these thresholds in terms of output
voltage change, multiply the error amplifier gain = V
OUT/VREF = (R1 + R2)/R2.
For example, at a
programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops
by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of V
OUT as VOUT is varied,
with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.
NOTE 6: V
EN ≤ 0.8V and VIN ≤ 16V, VOUT = 0.
NOTE7: Maximum positive supply voltage of 20V must be of limited duration ( <100ms) and duty cycle (<1%).
The maximum continuous supply voltage is 16V.
NOTE 8: V
REF ≤ VOUT ≤ (VIN-1), 2.5V ≤ VIN ≤ 16V, 10 mA ≤ IC ≤ IFL, TJ < TJMAX.
Reference
Thermal
Shutdown
EN
IN
OUT
ADJ
GND
O.V
I
LIMIT
28V
R1*
R2*
1.180V
1.240V +
+
--
FLAG
Figure 2. SP2941 Block Diagram
BLOCK DIAGRAM
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SPX2945M3 | 500mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2945R | 500mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2945S | 500mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2945T3 | 500mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2945T5 | 500mA Low Drop Out Voltage Regulator with Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPX2941T5/TR | 功能描述:低壓差穩(wěn)壓器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SPX2941T5-L | 功能描述:低壓差穩(wěn)壓器 - LDO 3V-16V 1000mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SPX2941T5-L/TR | 功能描述:低壓差穩(wěn)壓器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| SPX2941U5 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulator, Adjustable Output, Fast Response |
| SPX2941U5-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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