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参数资料
| 型号： | LT1767 |
| 厂商： | Linear Technology Corporation |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗辐射高效，5安培开关稳压器 |
| 文件页数： | 15/16页 |
| 文件大小： | 242K |
| 代理商： | LT1767 |
15
LT1767/LT1767-1.8/
LT1767-2.5/LT1767-3.3/LT1767-5
sn1767 1767fas
APPLICATIO
S I
FOR
ATIO
U
during switch on time, causing current to flow, and energy
to build in L1B and C4. At switch off, the energy stored in
both L1B and C4 supply the –5V rail. This reduces the
W
U
U
3.3V, 1A
* ONLY REQUIRED IF INPUT CAN SINK >10mA
REMOVABLE
INPUT
0.1
μ
F
1.5nF
83k
UPS120
1767 F09
2.2
μ
F
UPS120*
CMDSH-3
5
μ
H
2.2
μ
F
BOOST
LT1767-3.3
V
IN
V
SW
FB
SHDN
SYNC
GND
V
C
ALTERNATE
SUPPLY
28.5k
4.7k
Figure 9. Dual Source Supply with 6
μ
A Reverse Leakage
Figure 10. Buck Converter with Adjustable Soft-Start
BOOST
LT1767-5
V
IN
OUTPUT
5V
1A
V
IN
12V
1767 F10
C2
0.1
μ
F
C1
100
μ
F
C
SS
15nF
C
330pF
D1
C3
2.2
μ
F
D2
CMDSH-3
L1
5
μ
H
R3
2k
V
SW
FB
SHDN
SYNC
GND
V
C
+
+
R4
47k
Q1
D1: UPS120
Q1: 2N3904
OUTPUT
5V
OUTPUT
–5V
* L1 IS A SINGLE CORE WITH TWO WINDINGS
BH ELECTRONICS #511-1013
IF LOAD CAN GO TO ZERO,
AN OPTIONAL PRELOAD OF 1k TO 5k
MAY BE USED TO IMPROVE LOAD REGULATION
D1, D3: UPS120
V
IN
6V
TO 15V
GND
1767 F11
C2
0.1
μ
F
C
330pF
D1
C1
100
μ
F
10V TANT
C5
100
μ
F
10V TANT
C3
2.2
μ
F
16V
CERAMIC
C4
2.2
μ
F
16V
CERAMIC
D2
CMDSH-3
D3
L1A*
9
μ
H
L1B*
+
+
BOOST
LT1767-5
V
IN
V
SW
FB
SHDN
SYNC
GND
V
C
Figure 11. Dual Output SEPIC Converter
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
current in L1A and changes L1B current waveform from
square to triangular. For details on this circuit, including
maximum output currents, see Design Note 100.
PACKAGE DESCRIPTIO
N
U
MSOP (MS8) 1100
* DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH,
PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
0.021
±
0.006
(0.53
±
0.015)
0
°
– 6
°
TYP
SEATING
PLANE
0.007
(0.18)
0.043
(1.10)
MAX
0.009 – 0.015
(0.22 – 0.38)
0.005
±
0.002
(0.13
±
0.05)
0.034
(0.86)
REF
0.0256
(0.65)
BSC
1
2
3
4
0.193
±
0.006
(4.90
±
0.15)
8
7
6
5
0.118
±
0.004*
(3.00
±
0.102)
0.118
±
0.004**
(3.00
±
0.102)
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
相关PDF资料 |
PDF描述 |
|---|---|
| LT1767-1.8 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1767-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1767-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1767EMS8E-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1767EMS8E-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1767-1.8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic 1.5A, 1.25MHz Step-Down Switching Regulators |
| LT1767-2.5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic 1.5A, 1.25MHz Step-Down Switching Regulators |
| LT1767-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic 1.5A, 1.25MHz Step-Down Switching Regulators |
| LT1767-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic 1.5A, 1.25MHz Step-Down Switching Regulators |
| LT1767EMS8 | 功能描述:IC REG BUCK ADJ 1.5A 8MSOP 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 |
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