参数资料
型号: LT1110CN8-12#PBF
厂商: Linear Technology
文件页数: 1/16页
文件大小: 0K
描述: IC REG BUCK BOOST 12V 0.4A 8DIP
标准包装: 50
类型: 降压(降压),升压(升压)
输出类型: 固定
输出数: 1
输出电压: 12V
输入电压: 1 V ~ 30 V
频率 - 开关: 70kHz
电流 - 输出: 400mA
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
供应商设备封装: 8-PDIP
产品目录页面: 1325 (CN2011-ZH PDF)
LT1110
Micropower
DC-DC Converter
Adjustable and Fixed 5V, 12V
FEATURE S
D ESCRIPTIO
s
s
s
s
s
s
Operates at Supply Voltages From 1.0V to 30V
Works in Step-Up or Step-Down Mode
Only Three External Off-the-Shelf Components
Required
Low-Battery Detector Comparator On-Chip
User-Adjustable Current Limit
Internal 1A Power Switch
The LT1110 is a versatile micropower DC-DC converter.
The device requires only three external components to
deliver a fixed output of 5V or 12V. The very low minimum
supply voltage of 1.0V allows the use of the LT1110 in
applications where the primary power source is a single
cell. An on-chip auxiliary gain block can function as a low
battery detector or linear post regulator.
Fixed or Adjustable Output Voltage Versions
Space-Saving 8-Pin MiniDIP or S8 Package
s
s
A PPLICATI S
The 70kHz oscillator allows the use of surface mount
inductors and capacitors in many applications. Quiescent
current is just 300 μ A, making the device ideal in remote or
battery powered applications where current consumption
s
s
s
s
s
s
s
s
s
Pagers
Cameras
Single-Cell to 5V Converters
Battery Backup Supplies
Laptop and Palmtop Computers
Cellular Telephones
Portable Instruments
Laser Diode Drivers
Hand-Held Inventory Computers
must be kept to a minimum.
The device can easily be configured as a step-up or
step-down converter, although for most step-down
applications or input sources greater than 3V, the LT1111
is recommended. Switch current limiting is user-adjustable
by adding a single external resistor. Unique reverse battery
protection circuitry limits reverse current to safe, non-
destructive levels at reverse supply voltages up to 1.6V.
TYPICAL A PPLICATI
All Surface Mount
Single Cell to 5V Converter
SUMIDA
90
Efficiency
CD54-470K
47 μ H
MBRS120T3
85
1
2
5V
80
V IN = 1.50V
I LIM
V IN
75
V IN = 1.25V
1.5V
AA CELL*
LT1110-5
SW1
3
70
65
V IN = 1.00V
GND
5
SENSE
SW2
4
8
+
15 μ F
TANTALUM
60
55
OPERATES WITH CELL VOLTAGE ≥ 1.0V
50
0
5
10
15
20
25
30
35
40
*ADD 10 μ F DECOUPLING CAPACITOR IF BATTERY
IS MORE THAN 2" AWAY FROM LT1110.
LT1110 ? TA01
LOAD CURRENT (mA)
LT1110 ? TA02
1
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LT1110CN8-5#PBF 功能描述:IC REG BUCK BOOST 5V 0.4A 8DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.2V,1.5V,1.8V,2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP,10-MSOP(0.118",3.00mm 宽)裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘
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