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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)： | 8/11頁 |
| 文件大?。?/td> | 428K |
| 代理商： | MAX6349SHUT-T |
Detailed Description
The MAX6329/MAX6349 are low-dropout, low-quies-
cent current linear regulators with integrated micro-
processor reset circuits. The devices drive loads up to
150mA and are available with preset output voltages of
+3.3V, +2.5V, or +1.8V. The internal reset circuit moni-
tors the regulator output voltage and asserts the reset
output when the regulator output is below the micro-
processor supply tolerance.
Regulator
The regulator core operates with an input voltage range
of +2.5V to +5.5V. The output voltage is offered with
three fixed voltage options (+3.3V, +2.5V, and +1.8V) for
the MAX6329 and MAX6349. Enable the fixed voltage
output
by
connecting
SET
to
ground.
The
MAX6329/MAX6349 offer an adjustable output voltage
that is implemented with an external resistor-divider net-
work connected to OUT, SET, and GND (Figure 1). SET
must be connected to either GND or the external divider.
The MAX6329/MAX6349 automatically determine the
feedback path depending on the voltage seen at SET.
Featured characteristics include ultra-low quiescent cur-
rent and low dropout voltage. The Typical Operating
Circuit shows a typical connection for the MAX6329.
OUT is an internally regulated low dropout (LDO) linear
regulator that powers a microprocessor.
Reset Circuit
The reset supervisor circuit is fully integrated in the
MAX6329/MAX6349 and uses the same reference volt-
age as the regulator. Two supply tolerance reset thresh-
olds, -5% and -10%, are provided for each type of
device:
MAX6329/MAX6349
150mA, SOT23, Low Dropout Linear Regulators
with Internal Microprocessor Reset Circuit
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
DESCRIPTION
1
IN
Regulator Input. Supply voltage can range from +2.5V to +5.5V.
2
GND
Ground. This pin also functions as a heatsink. Solder to large pads or the circuit board ground plane to
maximize thermal dissipation.
SHDN
(MAX6329 Only) Active-Low Shutdown Input. A logic low reduces the supply current to < 1A. Connect
3
MR
(MAX6349 Only) Active-Low Manual Reset Input. A logic low forces a reset. Reset remains asserted for
the duration of the reset timeout period after MR transitions from low to high. Leave unconnected or
connect to VOUT if not used. MR has an internal pullup resistor of 20k
(typ) to OUT.
RESET
Active-Low Reset Output. RESET remains low while VOUT is below the reset threshold or while MR is
held low. RESET remains low for the duration of the reset timeout period after the reset conditions are
terminated.
4
RESET
Active-High Reset Output. RESET remains high while VOUT is below the reset threshold or while MR is
held low. RESET remains high for the duration of the reset timeout period after the reset conditions are
terminated.
5
SET
Feedback Input for Setting the Output Voltage. Connect to GND to set the output voltage to the preset
fixed value (+3.3V, +2.5V, or +1.8V). Connect to an external resistor-divider network for adjustable
output operation.
6
OUT
Regulator Output. Fixed (+3.3V, +2.5V, or +1.8V) or adjustable (+1.23V to +5.0V). Sources up to
150mA. Bypass with a 1F minimum capacitor for full rated performance.
MAX6329
MAX6349
2.5V TO 5.5V
IN
OUT
SET
R2
R1
GND
Figure 1. Adjustable Output Voltage Configuration
相關(guān)PDF資料 |
PDF描述 |
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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 |
| MAX6382XR43D2-T | SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits |
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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