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參數資料
| 型號： | MAX863EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | Dual, High-Efficiency, PFM, Step-Up DC-DC Controller |
| 中文描述： | DUAL SWITCHING CONTROLLER, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 194K |
| 代理商： | MAX863EEE |
_______________General Desc ription
The MAX863 dual-output DC-DC converter contains
two independent step-up controllers in a single com-
pact package. This monolithic bi-CMOS design draws
only 85μA when both controllers are on. The input
range extends down to 1.5V, permitting use in organiz-
ers, translators, and other low-power hand-held prod-
ucts. The MAX863 provides 90% efficiency at output
loads from 20mA to over 1A. This space-saving device
is supplied in a 16-pin QSOP package that fits in the
same area as an 8-pin SOIC.
The device uses a current-limited, pulse-frequency-
modulated (PFM) control architecture that reduces start-
up surge currents and maintains low quiescent currents
for excellent low-current efficiency. Each controller
drives a low-cost, external, N-channel MOSFET switch,
whose size can be optimized for any output current or
voltage.
In larger systems, two MAX863s can be used to gener-
ate 5V, 3.3V, 12V, and 28V from just two or three bat-
tery cells. An evaluation kit (MAX863EVKIT) is available
to speed designs. For a single-output controller, refer to
the MAX608 and MAX1771 data sheets.
________________________Applic ations
2- and 3-Cell Portable Equipment
Organizers
Translators
Hand-Held Instruments
Palmtop Computers
Personal Digital Assistants (PDAs)
Dual Supply (Logic and LCD)
__________________Pin Configuration
____________________________Features
o
Smallest Dual Step-Up Converter: 16-Pin QSOP
o
90% Efficiency
o
1.5V Start-Up Voltage
o
85μA Max Total Quiescent Supply Current
o
1μA Shutdown Mode
o
Independent Shutdown Inputs
o
Drives Surface-Mount, Dual N-Channel MOSFETs
o
Low-Battery Input/Output Comparator
o
Step-Up/Down Configurable
M
Dual, High-Effic ienc y, PFM, S tep-Up
DC-DC Controller
________________________________________________________________ Maxim Integrated Products
1
MAX863
EXT2
CS2
OUT2
OUT1
V
IN
N
N
ON/OFF
FB2
SHDN1
EXT1
CS1
LBO
LOW-BATTERY
DETECTOR OUTPUT
LBI
SENSE1 V
DD
PGND
BOOT
GND
FB1
SHDN2
REF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
SENSE1
REF
SHDN2
LBI
LBO
FB2
SHDN1
CS2
EXT2
TOP VIEW
MAX863
QSOP
V
DD
FB1
EXT1
BOOT
CS1
GND
PGND
__________Typic al Operating Circ uit
19-1218; Rev 1; 6/97
EVALUAVAILABLE
PART
MAX863C/D
MAX863EEE
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
Dice*
16 QSOP
______________Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
*
Dice are tested at T
A
= +25°C.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX863EEE+ | 功能描述:DC/DC 開關控制器 Dual PFM Step-Up DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX863EEE+T | 功能描述:DC/DC 開關控制器 Dual PFM Step-Up DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX863EEE-T | 功能描述:DC/DC 開關控制器 Dual PFM Step-Up DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX863EVKIT | 功能描述:DC/DC 開關控制器 Evaluation Kit for the MAX863 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX8640EVKIT | 制造商:Maxim Integrated Products 功能描述:500MA 4MHZ/2MHZ SYNCHRONOUS STEP-D - Rail/Tube |
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