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參數(shù)資料
| 型號： | MAX868EUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Regulated, Adjustable -2x Inverting Charge Pump |
| 中文描述： | 0.035 A SWITCHED CAPACITOR REGULATOR, 630 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 1.11 MM HEIGHT, UMAX-10 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 152K |
| 代理商： | MAX868EUB |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
General Desc ription
The MAX868 inverting charge pump provides a low-cost
and compact means of generating a regulated negative
voltage up to -2 x V
IN
from a positive input voltage
between 1.8V and 5.5V. It uses a pulse-frequency-
modulation (PFM) control scheme to generate the regulat-
ed negative output voltage. PFM operation is obtained
by gating the internal 450kHz oscillator on and off as
needed to maintain output voltage regulation. This
unique on-demand switching scheme gives the MAX868
excellent light-load efficiency without degrading its full-
load operation (up to 30mA), permitting smaller capaci-
tors to take advantage of the oscillator’s high switching
frequency.
The MAX868 requires no inductors; only four capacitors
are required to build a complete DC-DC converter.
Output voltage regulation is achieved by adding just two
resistors. The MAX868 comes in a 10-pin μMAX pack-
age, which is only 1.11mm high and occupies just half
the board area of a standard 8-pin SO.
________________________Applic ations
Small LCD Panels
Cell Phones
Cordless Phones
Camcorders
Handy-Terminals, PDAs
Medical Instruments
Battery-Operated Equipment
____________________________Features
o
Regulated Negative Output Voltage
(up to -2 x V
IN
)
o
Ultra-Small, 10-Pin μMAX Package
o
On-Demand Switching at up to 450kHz
o
30μA Quiescent Supply Current
o
Requires Only Four Small External Capacitors
o
1.8V to 5.5V Input Voltage Range
o
0.1μA Logic-Controlled Shutdown
o
Up to 30mA Output Current
M
Regulated, Adjustable -2x
Inverting Charge Pump
________________________________________________________________ Maxim Integrated Products
1
1
2
3
4
5
10
9
8
7
6
FB
SHDN
C2+
IN
PGND
C1-
OUT
GND
MAX868
μ
MAX
TOP VIEW
C2-
C1+
Configuration
MAX868
C1+
IN
PGND
SHDN
GND
FB
OUT
0.1
μ
F
1
μ
F
2.2
μ
F
V
OUT
= 0V TO-2 x V
IN
V
IN
= 1.8V TO5.5V
0.1
μ
F
C1-
C2+
C2-
Typic al Operating Circ uit
19-1290; Rev 1; 2/98
PART
MAX868C/D
MAX868EUB
*Dice are tested at T
A
= +25°C.
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
Dice*
10 μMAX
Ordering Information
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX868EUB+ | 功能描述:電荷泵 Reg/Adj -2x Invertin 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 |
| MAX868EUB+T | 功能描述:電荷泵 Reg/Adj -2x Invertin 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 |
| MAX868EUB-T | 功能描述:電荷泵 Reg/Adj -2x Invertin 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 |
| MAX868MUB/PR | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX86900EFD+ | 制造商:Maxim Integrated Products 功能描述:FIRST GEN BIO SENSOR WITH RED AND IR LED INTEGRATED IN OESIP - Rail/Tube 制造商:Maxim Integrated Products 功能描述:SENSOR RED/IR LED OESIP |
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