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參數(shù)資料
| 型號(hào)： | MAX6476TA30BD3 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 0.5mm Pitch DIL Vertical SMT Male Assembly, 1.62mm height, location pegs, hold-down tabs, tin, 40+40-way, Tape & Reel packing |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.19 V DROPOUT, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-8 |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大小： | 547K |
| 代理商： | MAX6476TA30BD3 |
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General Description
The MAX6469–MAX6484 are low-dropout linear regula-
tors with a fully integrated microprocessor reset circuit.
Each is available with preset output voltages from +1.5V
to +3.3V in 100mV increments and delivers up to 300mA
of load current. These devices consume only 82μA of
supply current. The low supply current, low dropout volt-
age, and integrated reset functionality make these
devices ideal for battery-powered portable equipment.
The MAX6469–MAX6484 include a reset output that indi-
cates when the regulator output drops below standard
microprocessor supply tolerances (-7.5% or -12.5% of
nominal output voltage). This eliminates the need for an
external microprocessor supervisor, while ensuring that
supply voltages and clock oscillators have stabilized
before processor activity is enabled. Push-pull and open-
drain active-low reset outputs are available, with reset
timeout periods of 2.5ms, 20ms, 150ms, or 1200ms (min).
The MAX6469/MAX6470/MAX6473–MAX6478/MAX6481–
MAX6484 also have a shutdown feature that reduces the
supply current to 0.1μA (typ). The MAX6471–MAX6474/
MAX6479–MAX6482 offer a manual reset input to assert a
microprocessor reset while the regulator output is within
specification. The MAX6475/MAX6476/MAX6483/
MAX6484 feature a remote feedback sense pin for use
with an external NPN transistor for higher-current applica-
tions. The MAX6469–MAX6476 are available in 6-pin
SOT23 and 8-pin thin QFN packages. The MAX6477–
MAX6484 are available in a 3
×
3 chip-scale package
(UCSP). All devices are specified for operation from
-40°C to +85°C.
Applications
Hand-Held Instruments (PDAs, Palmtops)
PCMCIA Cards/USB Devices
Cellular/Cordless Telephones
CD/DVD Drives
Notebook Computers
Digital Cameras
Bluetooth Modules/Wireless LAN
Features
o
3
3 UCSP, 6-Pin SOT23, and 8-Pin QFN Packages
o
Preset +1.5V to +3.3V Output (100mV Increments)
o
SET Pin for Adjustable Output Voltage
o
75μV
RMS
LDO Output Voltage Noise
(MAX6477–MAX6484)
o
±2.0% Accuracy Over Temperature
o
Guaranteed 300mA Output Current
o
Low Dropout Voltage
55mV at 150mA
114mV at 300mA
o
82μA Supply Current, 0.1μA Shutdown Current
o
Input Reverse Current, Thermal and Short-Circuit
Protection
o
Microprocessor Reset with Four Timeout Options
o
Push-Pull or Open-Drain
RESET
o
Manual Reset Input
o
Remote Feedback Sense
M
300mA LDO Linear Regulators with
Internal Microprocessor Reset Circuit
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-2532; Rev 2; 6/03
PART
TEMP RANGE
PIN-
PACKAGE
MAX6469
UT_ _ _D_-T
MAX6469TA_ _ _D_*
MAX6470
UT_ _ _D_-T
MAX6470TA_ _ _D_*
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
6 SOT23-6
8 Thin QFN
6 SOT23-6
8 Thin QFN
Note:
The first “_ _
”
are placeholders for the output voltage levels
of the devices. Desired output voltages are set by the suffix found
in the Output Voltage Suffix Guide (Table 1). The third “_” is a
placeholder for the reset threshold accuracy. Desired reset
threshold accuracy is set by the suffix found in the Reset
Threshold Accuracy Guide (Table 2). The “_” following the D is a
placeholder for the reset timeout delay time. Desired reset timeout
delay time is set by the suffix found in the Reset Timeout Delay
Guide (Table 3). For example, the MAX6481BL30BD4-T has a
3.0V output voltage, 12.5% reset threshold tolerance, and a
1200ms (min) reset timeout delay. Sample stock is generally avail-
able on standard versions only (Table 4). Standard versions
require a minimum order increment of 2.5k units. Nonstandard
versions must be ordered in 10k-unit increments. Contact factory
for availability.
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
*
Future product—contact factory for availability.
EVALUATION KIT
AVAILABLE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6476TA30BD3+ | 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 3V 0.3A 8TDFN EP - Rail/Tube |
| MAX6476TA30BD3+T | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO w/MPU Reset Circuit 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 |
| MAX6476TA30BD3-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(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 |
| MAX6476TA30BD4+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(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 |
| MAX6476TA30BD4-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(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 |
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