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参数资料
| 型号： | LT1070HVCT#PBF06 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 11 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封装： | PLASTIC, TO-220, 5 PIN |
| 文件页数： | 1/12页 |
| 文件大小： | 208K |
| 代理商： | LT1070HVCT#PBF06 |
10701fe
1
LT1070/LT1071
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
TYPICAL APPLICATIO
U
5A and 2.5A High Efficiency
Switching Regulators
s
Wide Input Voltage Range: 3V to 60V
s
Low Quiescent Current: 6mA
s
Internal 5A Switch (2.5A for LT1071)
s
Very Few External Parts Required
s
Self Protected Against Overloads
s
Operates in Nearly All Switching Topologies
s
Shutdown Mode Draws Only 50
A Supply Current
s
Flyback Regulated Mode Has Fully Floating Outputs
s
Comes in Standard 5-Pin TO-220 Package
s
Can be Externally Synchronized (Consult Factory)
The LT
1070/LT1071 are monolithic high power switch-
ing regulators. They can be operated in all standard switch-
ing configurations including buck, boost, flyback, for-
ward, inverting and “Cuk”. A high current, high efficiency
switch is included on the die along with all oscillator,
control and protection circuitry. Integration of all func-
tions allows the LT1070/LT1071 to be built in a standard
5-pin T0-220 power package. This makes it extremely
easy to use and provides “bust proof” operation similar to
that obtained with 3-pin linear regulators.
The LT1070/LT1071 operate with supply voltages from 3V
to 60V, and draw only 6mA quiescent current. They can
deliver load power up to 100W with no external power
devices. By utilizing current mode switching techniques,
they provide excellent AC and DC load and line regulation.
The LT1070/LT1071 have many unique features not found
even on the vastly more difficult to use low power control
chips presently available. They use adaptive antisat switch
drive to allow very wide ranging load currents with no loss
in efficiency. An externally activated shutdown mode
reduces total supply current to 50
A typical for standby
operation. Totally isolated and regulated outputs can be
generated by using the optional “flyback regulation mode”
built into the LT1070/LT1071, without the need for
optocouplers or extra transformer windings.
USER NOTE:
This data sheet is only intended to provide specifications, graphs and a general functional
description of the LT1070/LT1071. Application circuits are included to show the capability of the
LT1070/LT1071. A complete design manual (AN19) should be obtained to assist in developing new
designs. This manual contains a comprehensive discussion of both the LT1070 and the external
components used with it, as well as complete formulas for calculating the values of these
components. The manual can also be used for the LT1071 by factoring in the lower switch current
rating. A second Application Note, AN25, which details off-line applications is available.
+
R1
10.7k
1%
R2
1.24k
1%
1070/71 TA01
12V
1A
R3
1k
C1
1
F
C2
1000
F
+
C3*
100
F
L1**
150
H
D1
5V
VSW
VC
VIN
LT1070
GND
FB
C3
100
F
L2
10
H
OUTPUT
FILTER
*
**
REQUIRED IF INPUT LEADS
≥ 2"
PULSE ENGINEERING 92113
INPUT VOLTAGE (V)
0
POWER
(W)**
60
80
100
40
1070/71 TA02
40
20
0
10
20
30
50
BOOST
BUCK/BOOST
VO = 30V
FLYBACK
ISOLATED
BUCK/BOOST
VO = 5V
ROUGH GUIDE ONLY. BUCK MODE POUT = 5A VOUT.
SPECIAL TOPOLOGIES DELIVER MORE POWER
DIVIDE VERTICAL POWER SCALE BY 2 FOR LT1071
*
**
Maximum Output Power*
Boost Converter (5V to 12V)
s
Logic Supply 5V at 10A
s
5V Logic to
±15V Op Amp Supply
s
Off-Line Converter Up to 200W
s
Battery Upconverter
s
Power Inverter (+ to –) or (– to +)
s
Fully Floating Multiple Outputs
s
For Lower Current Applications, See the LT1072
, LTC and LT are registered trademarks of Linear Technology Corporation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1070HVIT | 功能描述:IC REG MULTI CONFIG ADJ TO220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT1070HVIT#06PBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG ADJ TO-220-5 |
| LT1070HVIT#PBF | 功能描述:IC REG MULTI CONFIG ADJ TO220-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT1070HVMK | 制造商:n/a 功能描述:_ |
| LT1070HVMK/883 | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 3V to 60V 5-Pin(4+Tab) TO-3 |
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