參數(shù)資料
型號(hào): MAX1703
廠商: Maxim Integrated Products, Inc.
元件分類: DC/DC變換器
英文描述: 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter
中文描述: 1節(jié)至3節(jié)電池、大功率(1.5A)、低噪聲、升壓型DC-DC轉(zhuǎn)換器
文件頁數(shù): 8/16頁
文件大?。?/td> 273K
代理商: MAX1703
M
1-Cell to 3-Cell, High-Power (1.5A),
Low-Noise, Step-Up DC-DC Converter
8
_______________________________________________________________________________________
_______________Detailed Description
The MAX1703 is a highly efficient, low-noise power
supply for portable RF and data-acquisition instru-
ments. It combines a boost switching regulator, N-
channel power MOSFET, P-channel synchronous
rectifier, precision reference, shutdown control, versa-
tile gain block, and power-good (POK) comparator
(Figure 1) in a 16-pin narrow SO package.
The switching DC-DC converter boosts a 1- to 3-cell
input to a fixed 5V or an adjustable output between
2.5V and 5.5V. Typically the MAX1703 starts from a
low, 0.9V input and remains operational down to 0.7V.
The MAX1703 is optimized for use in cellular phones
and other applications requiring low noise during full-
power operation, as well as low quiescent current for
maximum battery life in low-power mode and shut-
down. It features constant-frequency (300kHz), low-
noise PWM operation with up to 1.5A output capability.
See Table 1 for typical outputs. A low-quiescent-cur-
rent, low-power mode offers an output up to 150mA
and reduces quiescent power consumption to 300μW.
In shutdown mode, the quiescent current is further
reduced to just 1μA. Figure 2 shows the standard appli-
cation circuit for the MAX1703.
2.15V
IC POWER
1.25V
DUAL
MODE/
FB
OUT
REFERENCE
UNDERVOLTAGE LOCKOUT
START-UP
OSCILLATOR
300kHz
OSCILLATOR
PFM/PWM
CONTROLLER
PFM/PWM
P
N
EN
D
EN
POUT
LXN
LXP
PGND
COMPARATOR
OSC
MODE
FB
EN
Q
Q
Q
OUT
REF
FB
POKIN
GND
CLK/SEL
ON
RDY
REF
REF
ON
OUT
MAX1703
POK
N
GAIN
BLOCK
REF
AO
N
AIN
Figure 1. Functional Block Diagram
相關(guān)PDF資料
PDF描述
MAX1703ESE 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter
MAX1705 1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
MAX1706C 1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
MAX1706D BALUN HYBRID 750-950MHZ 1:4
MAX1705C 1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX17030EVKIT+ 功能描述:電源管理IC開發(fā)工具 MAX17030 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX17030GTL+ 功能描述:電壓模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr 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
MAX17030GTL+T 功能描述:電壓模式 PWM 控制器 1/2/3-Phase PWM IMVP-6.5 VID Ctlr 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
MAX17031ETG+ 功能描述:電壓模式 PWM 控制器 Dual PWM Step-Down Controller 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
MAX17031ETG+T 功能描述:電壓模式 PWM 控制器 Dual PWM Step-Down Controller 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