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參數(shù)資料
| 型號(hào)： | MAX679EUA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Regulated 3.3V Charge Pump |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 1.10 MM HEIGHT, ULTRA SMALL, UMAX-8 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 76K |
| 代理商： | MAX679EUA |
_______________General Desc ription
The MAX679 step-up, regulated charge pump gener-
ates a 3.3V ±4% output voltage from a 1.8V to 3.6V
input voltage (two alkaline, NiCd, or NiMH; or one
Lithium-Ion battery). Output current is 20mA (min) from
a 2.0V input. Only three external capacitors are needed
to build a complete DC-DC converter.
The MAX679’s switching frequency is pin selectable at
330kHz or 1MHz to allow trade-offs between lowest
supply current and smallest-size capacitors. The logic
shutdown function reduces the supply current to 5μA
(max) and disconnects the load from the input. Special
soft-start circuitry prevents excessive current from
being drawn from the battery during start-up. This DC-
DC converter requires no inductors and has low EMI. It
is available in the ultra-small μMAX package, which is
only 1.11mm high and half the area of an 8-pin SO.
________________________Applic ations
Battery-Powered Applications
Miniature Equipment
Backup-Battery Boost Converters
Translators
Two-Way Pagers
____________________________Features
o
Regulated 3.3V ±4% Output
o
Ultra-Small:
1.1mm-High, 8-Pin μMAX Package
o
No Inductors Required
o
Up to 1MHz Operation
(small external components)
o
Fits into 0.05 in.
2
o
Up to 85% Efficiency
o
1.8V to 3.6V Input Voltage Range
o
50μA Quiescent Supply Current
o
1μA Shutdown Current
M
Regulated 3.3V Charge Pump
________________________________________________________________ Maxim Integrated Products
1
C1-
PGND
GND
1
2
8
7
OUT
C1+
SHDN
IN
FSET
μ
MAX
TOP VIEW
3
4
6
5
MAX679
__________________Pin Configuration
MAX679
OUT
C1+
C1-
OFF/ON
IN
FSET
SHDN
INPUT
2V to 3.6V
OUTPUT
3.3V, 20mA
C
IN
C
OUT
C1
GND
PGND
__________Typic al Operating Circ uit
19-1217; Rev 0; 4/97
PART
MAX679C/D
MAX679EUA
0°C to +70°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
Dice*
8 μMAX
______________Ordering Information
*Dice are tested at T
A
= +25°C only.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX679EUA+ | 功能描述:電荷泵 Regulated 3.3V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX679EUA+T | 功能描述:電荷泵 Regulated 3.3V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX679EUA-T | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX6800UR26D1 | 制造商:Maxim Integrated Products 功能描述:3-PIN LOW-POWER MICROPROCESSOR RES - Rail/Tube |
| MAX6800UR26D1+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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