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MAX1706C

更新时间： 2024-09-15 22:34:47
品牌 Logo 应用领域
美信 - MAXIM 转换器稳压器电池
页数 文件大小 规格书
20页 216K
描述
1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator

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MAX1706C 数据手册

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19-1198; Rev 0; 4/97  
1 - t o 3 -Ce ll, Hig h -Cu rre n t , Lo w -No is e ,  
S t e p -Up DC-DC Co n ve rt e rs w it h Lin e a r Re g u la t o r  
5/MAX1706  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
The MAX1705/MAX1706 are high-efficiency, low-noise,  
s te p -up DC-DC c onve rte rs with a n a uxilia ry line a r-  
regulator output. These devices are intended for use in  
battery-powered wireless applications. They use a syn-  
chronous rectifier pulse-width-modulation (PWM) boost  
topology to generate 2.5V to 5.5V outputs from battery  
inputs, such as 1 to 3 NiCd/NiMH cells or 1 Li-Ion cell.  
The MAX1705 has an internal 1A N-channel MOSFET  
switch. The MAX1706 has a 0.5A switch. Both devices  
also have a built-in low-dropout linear regulator that  
delivers up to 200mA.  
♦ Up to 96% Efficiency  
♦ 1.1V Guaranteed Start-Up  
IN  
♦ Up to 850mA Output (MAX1705)  
♦ Step-Up Output (2.5V to 5.5V adjustable)  
♦ Linear Regulator (1.25V to 5.0V adjustable)  
♦ PWM/PFM Synchronous-Rectified Topology  
♦ 300kHz PWM Mode or Synchronizable  
♦ 1µA Shutdown Mode  
With an internal synchronous rectifier, the MAX1705/  
MAX1706 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 1µA shutdown mode. An  
efficiency-enhancing track mode reduces the step-up  
DC-DC converter output to 300mV above the linear-reg-  
ulator output.  
♦ Voltage Monitor  
♦ Pushbutton On/Off Control  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
Dice*  
MAX1705C/D  
MAX1705EEE  
MAX1706C/D  
MAX1706EEE  
Both devices come in a 16-pin QSOP package, which  
occupies the same space as an 8-pin SO. Other features  
include two shutdown-control inputs for push-on/push-off  
control, and an uncommitted comparator for use as a volt-  
age monitor.  
-40°C to +85°C  
0°C to +70°C  
16 QSOP  
Dice*  
-40°C to +85°C  
16 QSOP  
*Dice are tested at T = +25°C, DC parameters only.  
A
________________________Ap p lic a t io n s  
__________Typ ic a l Op e ra t in g Circ u it  
Digital Cordless Phones  
Personal Communicators  
Palmtop Computers  
PCS Phones  
Wireless Handsets  
Two-Way Pagers  
INPUT 0.7V TO 5.5V  
Hand-Held Instruments  
LX  
STEP-UP OUTPUT  
LBP  
__________________P in Co n fig u ra t io n  
POUT  
LOW-BATTERY  
OUT  
DETECTION  
TOP VIEW  
LBP  
LBN  
1
2
3
4
5
6
7
8
16 POUT  
15 ONA  
14 ONB  
13 LX  
FB  
MAX1705  
MAX1706  
LBO  
ONA  
ON/OFF CONTROL  
LINEAR  
REGULATOR  
OUTPUT  
REF  
ONB  
HIGH  
LOW  
CLK/SEL  
TRACK  
TRACK  
GND  
OUT  
MAX1705  
MAX1706  
EFFICIENCY  
NOISE  
LDO  
12 PGND  
11 CLK/SEL  
10 LBO  
FBLDO  
LBN  
REF  
GND PGND  
FB  
FBLDO  
9 LDO  
QSOP  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
1234567...20

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与MAX1706C相关器件

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MAX1706C/D MAXIM

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 		1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
MAX1706D MAXIM

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 		1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
MAX1706EEE MAXIM

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 		1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
MAX1706EEE+ MAXIM

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MAX1706EEE+T MAXIM

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 		Switching Regulator, Voltage-mode, 0.95A, 340kHz Switching Freq-Max, PDSO16, 0.150 INCH, 0
MAX1706EEE-T MAXIM

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 		Switching Regulator, Voltage-mode, 0.95A, 340kHz Switching Freq-Max, CMOS, PDSO16, 0.150 I
MAX1706EVKIT MAXIM

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 		Evaluation Kit for the MAX1705/MAX1706
MAX1707 MAXIM

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MAX17075 MAXIM

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MAX17075 ADI

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