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参数资料
| 型号： | LT1310EMSE#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.5A 10MSOP |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.8 V ~ 35 V |
| 输入电压： | 2.8 V ~ 18 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 10kHz ~ 4.5MHz |
| 电流 - 输出： | 1.5A |
| 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： | 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 |
| 其它名称： | LT1310EMSETR |
LT1310
1.5A Boost
DC/DC Converter
with Phase-Locked Loop
FEATURES
DESCRIPTIO
s
s
s
s
s
s
s
Synchronizable or Constant Frequency
Low Noise Output
Synchronizable Up to 4.5MHz
Wide Input Voltage Range: 2.8V to 18V
Low Profile Surface Mount Solution
(All Ceramic Capacitors)
Low V CESAT Switch: 240mV at 1A
Adjustable Output from V IN to 35V
Small Thermally Enhanced 10-Lead MSOP Package
The LT ? 1310 boost DC/DC converter combines a 1.5A
current mode PWM switcher with an integrated phase-
locked loop, allowing the user to set the switching fre-
quency anywhere from 10kHz to 4.5MHz. Intended for use
in applications where switching frequency must be accu-
rately controlled, the LT1310 can generate 12V at up to
400mA from a 5V input.
Switching frequency is set with an external capacitor, and
the device can be operated in either free-running or phase-
APPLICATIO S
locked mode. A wide capture range of nearly 2:1 allows the
free-running frequency to be set using standard ± 10%
tolerance NP0 dielectric capacitors.
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Instruments
Avionics
Data Acquisition
Communications
Imaging
Ultrasound
The LT1310 is available in the tiny thermally enhanced
10-lead MSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
V IN
5V
SHUTDOWN
C1
4.7 μ F
CERAMIC
L1
5.6 μ H
LT1310
V IN
SHDN
SW
FB
D1
178k
V OUT
12V
400mA
90
85
80
LT1310 Efficiency
V OUT = 12V
3.3V IN
5V IN
SYNC
SYNC
75
1.6MHz
3.01k
1500pF
PLL-LPF
V C
15k
820pF
C T
GND*
100pF
NP0
20.5k
C2
4.7 μ F
CERAMIC
70
65
60
55
50
1310 F01a
45
C1: 4.7 μ F, X5R OR X7R, 6.3V
C2: 4.7 μ F, X5R OR X7R, 16V
D1: MICROSEMI UPS120 OR EQUIVALENT
40
35
0
100 200
300
400
L1: PANASONIC ELL6SH-5R6M
*EXPOSED PAD MUST ALSO BE GROUNDED
LOAD CURRENT (mA)
1310 F01b
Figure 1. 5V to 12V Converter Synchronized at 1.6MHz
sn1310 1310fs
1
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