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参数资料
| 型号： | MAX1700EEE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1-Cell to 3-Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters |
| 中文描述： | 1.8 A SWITCHING REGULATOR, 340 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件页数： | 9/16页 |
| 文件大小： | 248K |
| 代理商： | MAX1700EEE |
M
1-Cell to 3-Cell, High-Power (1A),
Low-Noise, S tep-Up DC-DC Converters
_______________________________________________________________________________________
9
_______________Detailed Desc ription
The MAX1700/MAX1701 are highly efficient, low-noise
power supplies for portable RF and data acquisition
instruments. The MAX1700 combines a boost switching
regulator, N-channel power MOSFET, P-channel syn-
chronous rectifier, precision reference, and shutdown
control. The MAX1701 contains all of the MAX1700 fea-
tures plus a versatile gain amplifier, POK output, and a
low-battery comparator (Figure 1). The MAX1700/
MAX1701 come in a 16-pin QSOP package, which
occupies no more space than an 8-pin SO.
The switching DC-DC converter boosts a 1- to 3-cell
input to an adjustable output between 2.5V and 5.5V.
The MAX1700/MAX1701 start from a low 1.1V input and
remain operational down to 0.7V.
These devices are 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 during standby and shutdown
modes. They feature constant-frequency (300kHz), low-
noise PWM operation with up to 800mA output capabili-
ty. See Table 1 for typical available output current. A
low-quiescent-current, low-power mode offers an out-
put up to 100mA and reduces quiescent power con-
sumption to 200μW. In shutdown mode, the quiescent
current is further reduced to just 3μA. Figure 2 shows
the
standard
application
MAX1700/MAX1701.
Additional features include synchronous rectification for
high efficiency and improved battery life, a POK output,
and an uncommitted comparator for low-battery detec-
tion (MAX1701). A CLK input allows frequency synchro-
nization to reduce interference. Dual shutdown controls
allow shutdown using a momentary pushbutton switch
and microprocessor control (MAX1701).
circuit
for
the
2.25V
IC PWR
1.25V
FEEDBACK AND
POWER-GOOD
SELECT
REFERENCE
UNDERVOLTAGE LOCKOUT
COMPARATOR
GAIN
BLOCK
FEEDBACK
START-UP
OSCILLATOR
OSCILLATOR
300kHz
PFM/PWM
CONTROLLER
PFM/PWM
PCH
0.25
NCH
0.13
REF
EN
D
EN
POUT
LX
PGND
POK*
AO*
LBO*
N
N
N
OSC
MODE
FB
EN
Q
Q
Q
*MAX1701 ONLY
LBP*
LBN*
ONA
REF
FB
GND
CLK/SEL
ON
RDY
REF
AIN*
ONB
OUT
Figure 1. Functional Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MAX1703 | 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter |
| MAX1703ESE | 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1700EEE+ | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1700EEE+T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1700EEE-T | 功能描述:直流/直流开关转换器 1-3 Cell 1A Step-Up DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX17010AETL+ | 功能描述:LCD 驱动器 Internal-Switch Boost Regulator RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX17010AETL+T | 功能描述:LCD 驱动器 Internal-Switch Boost Regulator RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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