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参数资料
| 型号： | LT1776IS8 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SPST, 150mA PC Mount Pushbutton |
| 中文描述： | 1 A SWITCHING REGULATOR, 230 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 1/20页 |
| 文件大小： | 147K |
| 代理商： | LT1776IS8 |
1
LT1776
Wide Input Range,
High Efficiency, Step-Down
Switching Regulator
The LT
1776 is a wide input range, high efficiency Buck
(step-down) switching regulator. The monolithic die in-
cludes all oscillator, control and protection circuitry. The
part can accept input voltages as high as 60V and contains
an output switch rated at 700mA peak current. Current
mode control delivers excellent dynamic input supply
rejection and short-circuit protection.
The LT1776 contains several features to enhance effi-
ciency. The internal control circuitry is normally powered
via the V
CC
pin, thereby minimizing power drawn directly
from the V
IN
supply (see Applications Information). The
action of the LT1776 switch circuitry is also load depen-
dent. At medium to high loads, the output switch circuitry
maintains fast rise time for good efficiency. At light loads,
rise time is deliberately reduced to avoid pulse skipping
behavior.
The available SO-8 package and 200kHz switching fre-
quency allow for minimal PC board area requirements.
I
Wide Input Range: 7.4V to 40V
I
Tolerates Input Transients to 60V
I
700mA Peak Switch Rating
I
Adaptive Switch Drive Maintains Efficiency at High
Load Without Pulse Skipping at Light Load
I
True Current Mode Control
I
200kHz Fixed Operating Frequency
I
Synchronizable to 400kHz
I
Low Supply Current in Shutdown: 30
μ
A
I
Available in 8-Pin SO and PDIP Packages
39
μ
F
63V
1776 F01
V
IN
V
CC
V
SW
LT1776
FB
V
C
SHDN
SYNC
2
5
4
3
7
8
1
6
GND
+
100
μ
F
10V
+
MBR160
36.5k
1%
5V
400mA
12.1k
1%
22k
100
μ
H*
2200pF
V
IN
8V TO 40V
100pF
*43T #30 ON MAGNETICS
MPP #55030
Efficiency vs V
IN
and I
LOAD
LOAD CURRENT
(mA)
1
60
E
70
80
90
10
100
1000
1776 TA01
50
40
30
20
V
IN
= 10V
V
IN
= 20V
V
IN
= 30V
V
IN
= 40V
Figure 1
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Automotive DC/DC Converters
I
Cellular Phone Battery Charger Accessories
I
IEEE 1394 Step-Down Converters
FEATURES
DESCRIPTIO
U
APPLICATIU
TYPICAL APPLICATIO
U
相关PDF资料 |
PDF描述 |
|---|---|
| LT1776 | Wide Input Range, High Efficiency, Step-Down Switching Regulator(宽输入范围，高效率，5V输出步降开关稳压器) |
| LT1777C | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1777IS | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1777CS | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1777I | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1776IS8#PBF | 功能描述:IC REG BUCK ADJ 0.7A 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 |
| LT1776IS8#PBF | 制造商:Linear Technology 功能描述:IC STEP-DOWN REGULATOR 8-SOIC |
| LT1776IS8#TR | 功能描述:IC REG BUCK ADJ 0.7A 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 |
| LT1776IS8#TRPBF | 功能描述:IC REG BUCK ADJ 0.7A 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 |
| LT1776IS8PBF | 制造商:Linear Technology 功能描述:Sw. Regulator Step-Down 7.4V-40V SOIC8 |
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