参数资料
型号: MAX890LESA+
厂商: Maxim Integrated Products
文件页数: 1/8页
文件大小: 0K
描述: IC SW MOSFET PUR PCH HSIDE 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
类型: 高端开关
输出数: 1
Rds(开): 130 毫欧
内部开关:
电流限制: 1.2A
输入电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 1409 (CN2011-ZH PDF)
19-1774; Rev 0; 7/00
ATION
AILABL
EVALU E
AV
KIT
High-Frequency, Regulated,
200mA, Inverting Charge Pump
General Description
The MAX889 inverting charge pump delivers a regulated
negative output voltage at loads of up to 200mA. The
device operates with inputs from 2.7V to 5.5V to produce
an adjustable, regulated output from -2.5V to -V IN .
The MAX889 is available with an operating frequency of
2MHz (T version), 1MHz (S version), or 0.5MHz (R ver-
sion). The higher switching frequency devices allow the
use of smaller capacitors for space-limited applica-
tions. The lower frequency devices have lower quies-
cent current.
The MAX889 also features a 0.1μA logic-controlled
shutdown mode and is available in an 8-pin SO pack-
age. An evaluation kit, MAX889SEVKIT, is available.
________________________Applications
Features
o 200mA Output Current
o Up to 2MHz Switching Frequency
o Small Capacitors (1μF)
o +2.7V to +5.5V Input Voltage Range
o Adjustable Regulated Negative Output
(-2.5V to -V IN )
o 0.1μA Logic-Controlled Shutdown
o Low 0.05 ? Output Resistance (in regulation)
o Soft-Start and Foldback Current Limited
o Short-Circuit and Thermal Shutdown Protected
o 8-Pin SO Package
Ordering Information
TFT Panels
TEMP.
PIN-
SWITCHING
Hard Disk Drives
PART
RANGE
PACKAGE FREQUENCY
Camcorders
Digital Cameras
Measurement Instruments
MAX889TESA
MAX889SESA
MAX889RESA
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
8 SO
8 SO
8 SO
2MHz
1MHz
0.5MHz
Battery-Powered Applications
Typical Operating Circuit
INPUT +2.7V TO +5.5V
TOP VIEW
Pin Configuration
OFF
ON
SHDN
IN
FB
REGULATED
NEGATIVE
IN
1
8
AGND
CAP+ MAX889
OUT
OUTPUT
(UP TO -1 × V IN ,
UP TO 200mA)
CAP+
GND
2
3
MAX889
7
6
FB
SHDN
CAP-
AGND
GND
CAP- 4
5
OUT
SO
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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相关代理商/技术参数
参数描述
MAX890LESA/V+ 功能描述:电源开关 IC - 配电 5/3.3/AdjV 200mA LDO RoHS:否 制造商:Exar 输出端数量:1 开启电阻(最大值):85 mOhms 开启时间(最大值):400 us 关闭时间(最大值):20 us 工作电源电压:3.2 V to 6.5 V 电源电流(最大值): 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX890LESA/V+T 功能描述:电源开关 IC - 配电 1.2A P-Channel Swtch w/Thermal Shutdown RoHS:否 制造商:Exar 输出端数量:1 开启电阻(最大值):85 mOhms 开启时间(最大值):400 us 关闭时间(最大值):20 us 工作电源电压:3.2 V to 6.5 V 电源电流(最大值): 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX890LESA+ 功能描述:电源开关 IC - 配电 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻(最大值):85 mOhms 开启时间(最大值):400 us 关闭时间(最大值):20 us 工作电源电压:3.2 V to 6.5 V 电源电流(最大值): 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX890LESA+T 功能描述:电源开关 IC - 配电 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻(最大值):85 mOhms 开启时间(最大值):400 us 关闭时间(最大值):20 us 工作电源电压:3.2 V to 6.5 V 电源电流(最大值): 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX890LESA-T 功能描述:电源开关 IC - 配电 1.2A Current-Limited High-Side PCh Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻(最大值):85 mOhms 开启时间(最大值):400 us 关闭时间(最大值):20 us 工作电源电压:3.2 V to 6.5 V 电源电流(最大值): 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5