参数资料
型号: MAX774EPA+
厂商: Maxim Integrated Products
文件页数: 1/16页
文件大小: 0K
描述: IC REG CTRLR INV PWM 8-DIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 控制器
输出数: 1
频率 - 最大: 300kHz
占空比: 85%
电源电压: 3 V ~ 16.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
TION KIT
19-0191; Rev 2; 12/02
EVALUA
AV AILABLE
-5V/-12V/-15V or Adjustable, High-Efficiency,
Low I Q Inverting DC-to-DC Controllers
General Description
The MAX774/MAX775/MAX776 inverting switching
regulators deliver high efficiency over three decades of
load current. A unique current-limited, pulse-
frequency modulated (PFM) control scheme provides
the benefits of pulse-width modulation (high efficiency
with heavy loads), while using less than 100μA of supply
current (vs. 2mA to 10mA for PWM converters). The result
is high efficiency over a wide range of loads.
These ICs also use tiny external components; their high
switching frequency (up to 300kHz) allows for less than
5mm diameter surface-mount magnetics.
The MAX774/MAX775/MAX776 accept input voltages from
3V to 16.5V, and have preset output voltages of
-5V, -12V, and -15V, respectively. Or, the output voltage
Features
o 85% Efficiency for 5mA to 1A Load Currents
o Up to 5W Output Power
o 100μA (max) Supply Current
o 5μA (max) Shutdown Current
o 3V to 16.5V Input Range
o -5V (MAX774), -12V (MAX775), -15V (MAX776),
or Adjustable Output Voltage
o Current-Limited PFM Control Scheme
o 300kHz Switching Frequency
can be user-adjusted with two resistors. Maximum
V IN - V OUT differential voltage is limited only by the break-
down voltage of the chosen external switch transistor.
PART
Ordering Information
TEMP RANGE PIN-PACKAGE
These inverters use external P-channel MOSFET switches,
allowing them to power loads up to 5W. If less power is
required, use the MAX764/MAX765/MAX766 inverting
switching regulators with on-board MOSFETs.
Applications
LCD-Bias Generators
MAX774 CPA
MAX774CSA
MAX774C/D
MAX774EPA
MAX774ESA
MAX774MJA
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
High-Efficiency DC-to-DC Converters
Battery-Powered Applications
Data Communicators
Typical Operating Circuit
INPUT
3V TO 16V
V+
* Contact factory for dice specifications.
Ordering Information continued on last page.
Pin Configuration
TOP VIEW
ON/OFF
SHDN
MAX774
CS
OUT
1
8
GND
FB
EXT
P
OUTPUT
-5V
FB
SHDN
2
3
MAX774
MAX775
MAX776
7
6
EXT
CS
REF
4
5
V+
REF
GND
OUT
DIP/SO
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数
参数描述
MAX774EPA+ 功能描述:DC/DC 开关控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX774ESA 功能描述:DC/DC 开关控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX774ESA+ 功能描述:DC/DC 开关控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX774ESA+T 功能描述:DC/DC 开关控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX774ESA-T 功能描述:DC/DC 开关控制器 5/12/15/AdjV- Inv DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK