參數(shù)資料
型號(hào): MAX1700
廠商: Maxim Integrated Products, Inc.
元件分類(lèi): DC/DC變換器
英文描述: 1-Cell to 3-Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters
中文描述: 1節(jié)至3節(jié)電池、大功率(1A)、低噪聲、升壓型DC-DC轉(zhuǎn)換器
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 248K
代理商: MAX1700
General Desc ription
The MAX1700/MAX1701 are high-efficiency, low-noise,
step-up DC-DC converters intended for use in battery-
powered wireless applications. They use a synchro-
nous-rectified pulse-width-modulation (PWM) boost
topology to generate 2.5V to 5.5V outputs from battery
inputs such as one to three NiCd/NiMH cells or one Li-
Ion cell. Both devices have an internal 1A, 130m
N-
channel MOSFET switch and a 250m
P-channel
synchronous rectifier.
With their internal synchronous rectifier, the MAX1700/
MAX1701 deliver 5% better efficiency than similar non-
synchronous converters. They also feature a pulse-
frequency-modulation (PFM) standby mode to improve
efficiency at light loads, and a 3μA shutdown mode.
The MAX1700/MAX1701 come in 16-pin QSOP pack-
ages (which occupy the same space as an 8-pin SO).
The MAX1701 includes two comparators to generate
power-good and low-battery warning outputs. It also
contains a gain block that can be used to build a linear
regulator using an external P-channel pass device.
For higher-power outputs, refer to the MAX1703. For
dual outputs (step-up and linear regulator), refer to the
MAX1705/MAX1706. For an on-board analog-to-digital
converter, refer to the MAX848/MAX849.
The MAX1701 evaluation kit is available to speed design
time.
Applic ations
Personal Communicators
Palmtop Computers
Hand-Held Instruments
Digital Cordless Phones
PCS Phones
Wireless Handsets
Two-Way Pagers
Features
o
Up to 96% Efficiency
o
1.1 V
IN
Guaranteed Start-Up
o
0.7V to 5.5V Input Range
o
Up to 800mA Output
o
Step-Up Output (adjustable from 2.5V to 5.5V)
o
PWM/PFM Synchronous-Rectified Topology
o
External Clock or Internal 300kHz Oscillator
o
3μA Logic-Controlled Shutdown
o
Power-Good Output (MAX1701)
o
Low-Battery Comparator (MAX1701)
o
Uncommitted Gain Block (MAX1701)
M
1-Cell to 3-Cell, High-Power (1A),
Low-Noise, S tep-Up DC-DC Converters
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
PGND
GND
FB
ONA
REF
ONB
POUT
LX
OUT
ON
INPUT
0.7V TO5.5V
OR
OFF
OFF
ON
SYNC
PWM
PFM
OUTPUT
3.3V OR ADJ
UP TO800mA
CLK/SEL
MAX1700
Pin Configurations
TOP VIEW
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
I.C.
I.C.
POUT
OUT
LX
PGND
FB
I.C.
I.C.
I.C. = INTERNAL CONNECTION. LEAVE OPEN OR CONNECT TOGND
Pin Configurations continued at end of data sheet.
MAX1700
QSOP
I.C.
REF
I.C.
CLK/SEL
GND
ONB
ONA
Typic al Operating Circ uit
19-4759; Rev 1; 1/99
EVALUATION KIT MANUAL
PART
MAX1700
EEE
MAX1701
EEE
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
16 QSOP
16 QSOP
FOLLOWS DATA SHEET
Ordering Information
相關(guān)PDF資料
PDF描述
MAX1700-MAX1701 1-Cell to 3-Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters
MAX1700EEE 1-Cell to 3-Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters
MAX1701EEE 18-Bit Universal Bus Transceivers With 3-State Outputs 56-SSOP -40 to 85
MAX1702B Triple-Output Power-Management IC for Microprocessor-Based Systems
MAX1702BEGX Triple-Output Power-Management IC for Microprocessor-Based Systems
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX17000AETG+ 功能描述:電壓模式 PWM 控制器 DDR2 & DDR3 Memory Power-Mgt RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX17000AETG+C00 功能描述:電壓模式 PWM 控制器 DDR2 & DDR3 Memory Power-Mgt RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX17000AETG+CAJ 制造商:Maxim Integrated Products 功能描述:DDR CONTROLLER - Rail/Tube
MAX17000AETG+G40 功能描述:電壓模式 PWM 控制器 DDR2 & DDR3 Memory Power-Mgt RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX17000AETG+T 功能描述:電壓模式 PWM 控制器 DDR2 & DDR3 Memory Power-Mgt RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel