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| 型号： | LT1072CP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.25 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 1/19页 |
| 文件大小： | 294K |
| 代理商： | LT1072CP |
LT1072, LT1072HV
1.25-A HIGH-EFFICIENCY SWITCHING REGULATORS
SLVS071A – NOVEMBER 1989 – REVISED AUGUST 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Wide Supply-Voltage Range:
LT1072HV ...3 V to 60 V
LT1072...3 V to 40 V
Low Quiescent Current...6 mA Typ
Internal 1.25-A Switch
Few External Parts Required
Self-Protected Against Overloads
Operates in Most Switching Configurations
Low Shutdown-Mode Supply Current
Floating Outputs in Flyback-Regulated
Mode
Can Be Externally Synchronized
AVAILABLE OPTIONS
TJ
MAX
INPUT
VOLTAGE
KC
PACKAGE
KV
PACKAGE
P
PACKAGE
0
°C to
60 V
LT1072HVCKC
LT1072HVCKV
LT1072HVCP
100
°C
40 V
LT1072CKC
LT1072CKV
LT1072CP
–40
°C to
60 V
LT1072HVIKC
LT1072HVIKV
LT1072HVIP
125
°C
40 V
LT1072IKC
LT1072IKV
LT1072IP
description
The LT1072 is a monolithic, high-efficiency switching
regulator. It can be operated in all standard switching
configurations including: step-down (buck), step-up
(boost), flyback, forward, inverting, and Cuk. A high-current, high-efficiency switch is included in the package
along with all oscillator, control, and protection circuitry. Integration of all functions allows the LT1072 to be built
in standard 5-terminal KC or a KV packages and the 8-terminal P package. This makes it extremely easy to use
and provides reliable operation similar to that obtained with 3-terminal linear regulators.
The LT1072 operates with supply voltages from 3 V to 40 V. The LT1072HV, a high-voltage version of the
LT1072, operates with supply voltages from 3 V to 60 V. These devices draw only 6 mA of quiescent current,
deliver load power up to 20 W with no external power devices, and by utilizing current-mode switching
techniques, provide excellent ac and dc input and output regulation.
The LT1072 is much easier to use than the low-power control chips that are presently available and has many
unique features that are not found on these chips. It uses an adaptive saturation-preventing 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 LT1072 without using optocouplers or extra
transformer windings.
A boost-buck-derived regulator circuit patented by Slobodan Cuk.
‘
KC AND KV PACKAGE
(KV Package Used for Illustration)
(TOP VIEW)
IN
GND
C
SW
FB
1
2
3
4
8
7
6
5
GND
C
FB
NC
E2
SW
E1
IN
P Package
(TOP VIEW)
NC = No internal connection
KC 5-Lead
KV 5-Lead
相关PDF资料 |
PDF描述 |
|---|---|
| LT1072MK/883 | 1.25 A SWITCHING REGULATOR, 40 kHz SWITCHING FREQ-MAX, MBFM2 |
| 5962-9082506MYA | 3.5 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, MBFM4 |
| 5962-9082503MYX | 1.25 A SWITCHING REGULATOR, 40 kHz SWITCHING FREQ-MAX, MBFM2 |
| 5962-9082503MYA | 3.5 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, MBFM4 |
| 5962-9082506MYX | 1.25 A SWITCHING REGULATOR, 40 kHz SWITCHING FREQ-MAX, MBFM2 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1072CS8 | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC 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: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 |
| LT1072CS8#PBF | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC 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 |
| LT1072CS8#TR | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC 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: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 |
| LT1072CS8#TRPBF | 功能描述:IC REG MULTI CONFIG ADJ 8SOIC 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 |
| LT1072CS8PBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Up 3-60V SOIC8 |
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