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參數(shù)資料
| 型號： | MAX6349SHUT-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 固定／可調(diào)正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | Analog IC |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.36 V DROPOUT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 11/11頁 |
| 文件大?。?/td> | 428K |
| 代理商： | MAX6349SHUT-T |
Capacitor Selection and
Regulator Stability
For stable operation over the full temperature range
and with load currents up to 150mA, use a 1F (min)
output capacitor. To reduce noise and improve load
transient response, stability, and power-supply rejec-
tion, use large output capacitor values such as 10F.
Note that some ceramic dielectrics exhibit large capac-
itance and ESR variation with temperature. With
dielectrics such as Z5U and Y5V, it may be necessary
to use 2.2F or more to ensure stability at temperatures
below -10°C. With X7R or X5R dielectrics, 1F should
be sufficient at all operating temperatures. A graph of
the Region of Stable COUT ESR vs. Load Current is
shown in the Typical Operating Characteristics.
To improve power-supply rejection and transient
response use a 1F capacitor between IN and GND.
Input-Output (Dropout) Voltage
A regulator’s minimum input-output voltage differential
(or dropout voltage) determines the lowest useable
supply voltage. In battery powered systems, this will
determine the useful end-of-life battery voltage. Since
the MAX6329/MAX6349 use a P-channel MOSFET pass
transistor, their dropout voltage is a function of RDS(ON)
multiplied by the load current (see Electrical
Characteristics).
Negative Going OUT Transients
These supervisors are relatively immune to short-dura-
tion, negative going OUT transients. The Typical
Operating Characteristics section shows a graph of the
Maximum Transient Duration vs. Reset Threshold
Overdrive for which reset is not asserted. The graph
was produced using negative going OUT transients
starting at OUT and ending below the reset threshold
by the magnitude indicated (Reset Threshold
Overdrive). The graph shows the maximum pulse width
that a negative going OUT transient can typically have
without triggering a reset pulse. As the amplitude of the
transient increases (i.e., goes further below the reset
threshold), the maximum allowable pulse width
decreases. Typically, an OUT transient that goes only
10mV below the reset threshold and lasts for 75s will
not trigger a reset pulse.
MAX6329/MAX6349
150mA, SOT23, Low Dropout Linear Regulators
with Internal Microprocessor Reset Circuit
_______________________________________________________________________________________
9
Chip Information
TRANSISTOR COUNT: 800
PROCESS: BiCMOS
MAX6329
SET
VCC
SHDN
RESET
IN
2.5V TO 5.5V
GND
P
1
F
RESET
OUT
Typical Operating Circuit
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| MAX636BCSA-T | 0.525 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8 |
| MAX6381XR42D2-T | Analog IC |
| MAX6382XR43D1-T | SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6349SL | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:150mA, SOT23, Low-Dropout Linear Regulators with Internal Microprocessor Reset Circuit |
| MAX6349SLUT | 制造商:Maxim Integrated Products 功能描述:150MA SOT23 LOW-DROPOUT LINEAR RE - Cut Tape Product |
| MAX6349SLUT-T | 功能描述:低壓差穩(wěn)壓器 - LDO 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 |
| MAX6349SP | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:150mA, SOT23, Low-Dropout Linear Regulators with Internal Microprocessor Reset Circuit |
| MAX6349SPUT | 制造商:Maxim Integrated Products 功能描述:150MA SOT23 LOW-DROPOUT LINEAR RE - Cut Tape Product |
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