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参数资料
| 型号： | LT1054CJ8#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 40 kHz SWITCHING FREQ-MAX, CDSO8 |
| 封装： | 0.300 INCH, LEAD FREE, HERMETIC SEALED, CERAMIC, DIP-8 |
| 文件页数： | 1/16页 |
| 文件大小： | 264K |
| 代理商： | LT1054CJ8#PBF |
LT1054/LT1054L
1
1954lfg
BLOCK DIAGRAM
FEATURES
DESCRIPTION
Switched-Capacitor Voltage
Converter with Regulator
The LT1054 is a monolithic, bipolar, switched-capacitor
voltage converter and regulator. The LT1054 provides
higher output current than previously available converters
with significantly lower voltage losses. An adaptive switch
driver scheme optimizes efficiency over a wide range of
output currents. Total voltage loss at 100mA output current
is typically 1.1V. This holds true over the full supply voltage
range of 3.5V to 15V. Quiescent current is typically 2.5mA.
The LT1054 also provides regulation, a feature not previ-
ouslyavailableinswitched-capacitorvoltageconverters.By
adding an external resistive divider a regulated output can
be obtained. This output will be regulated against changes
in both input voltage and output current. The LT1054 can
also be shut down by grounding the feedback pin. Supply
current in shutdown is less than 100A.
The internal oscillator of the LT1054 runs at a nominal
frequency of 25kHz. The oscillator pin can be used to ad-
just the switching frequency or to externally synchronize
the LT1054.
The LT1054 is pin compatible with previous converters
such the LTC1044/ICL7660.
LT1054/LT1054 Voltage Loss
APPLICATIONS
■
Output Current: 100mA (LT1054)
125mA (LT1054L)
■
Reference and Error Amplifier for Regulation
■
Low Loss: 1.1V at 100mA
■
Operating Range:3.5V to 15V (LT1054)
3.5V to 7V (LT1054L)
■
External Shutdown
■
External Oscillator Synchronization
■
Can Be Paralleled
■
Pin Compatible with the LTC1044/ICL7660
■
Available in SW16 and SO-8 Packages
■
Voltage Inverter
■
Voltage Regulator
■
Negative Voltage Doubler
■
Positive Voltage Doubler
L
, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
REFERENCE
OSC
DRIVE
OSC
CAP–
GND
CAP+
FEEDBACK/
SHUTDOWN
–
+
R
*EXTERNAL CAPACITORS
2.5V
6
1
4
3
–VOUT
LT1054 BD
5
2
8
7
Q
VREF
CIN*
VIN
COUT*
+
OUTPUT CURRENT (mA)
0
VOLTAGE
LOSS
(V)
1
2
50
1054 TA01
0
25
75
100
125
TJ = 125°C
TJ = 25°C
TJ = –55°C
LT1054
LT1054L
3.5V ≤ VIN ≤ 15V (LT1054)
3.5V ≤ VIN ≤ 7V (LT1054L)
CIN = COUT = 100F
INDICATES GUARANTEED
TEST POINT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1054CN8 | 功能描述:IC REG SWITCHED CAP DBL INV 8DIP RoHS:否 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 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） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LT1054CN8#PBF | 功能描述:IC REG SWITCHED CAP DBL INV 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT1054CN8PBF | 制造商:Linear Technology 功能描述:DC-DC converter,LT1054CN8 -Vin/2Vin 20mA |
| LT1054CP | 功能描述:电荷泵 Bipolar Regulated V RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| LT1054CP | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
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