參數(shù)資料
型號(hào): LT1310EMSE
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: 1.5A Boost DC/DC Converter with Phase-Locked Loop
中文描述: 2.8 A SWITCHING REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO10
封裝: PLASTIC, MSOP-10
文件頁(yè)數(shù): 1/12頁(yè)
文件大?。?/td> 376K
代理商: LT1310EMSE
1
LT1310
1310f
1.5A Boost
DC/DC Converter
with Phase-Locked Loop
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-
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.
The LT1310 is available in the tiny thermally enhanced
10-lead MSOP package.
I
Synchronizable or Constant Frequency
Low Noise Output
I
Synchronizable Up to 4.5MHz
I
Wide Input Voltage Range: 2.8V to 18V
I
Low Profile Surface Mount Solution
(All Ceramic Capacitors)
I
Low V
CESAT
Switch: 240mV at 1A
I
Adjustable Output from V
IN
to 35V
I
Small Thermally Enhanced 10-Lead MSOP Package
I
Instruments
I
Avionics
I
Data Acquisition
I
Communications
I
Imaging
I
Ultrasound
, LTC and LT are registered trademarks of Linear Technology Corporation.
V
IN
SHDN
SHUTDOWN
SYNC
1.6MHz
SYNC
PLL-LPF
3.01k
V
IN
5V
15k
178k
20.5k
100pF
NP0
1310 F01a
C2
4.7
μ
F
CERAMIC
V
OUT
12V
400mA
1500pF
820pF
C1: 4.7
μ
F, X5R OR X7R, 6.3V
C2: 4.7
μ
F, X5R OR X7R, 16V
D1: MICROSEMI UPS120 OR EQUIVALENT
L1: PANASONIC ELL6SH-5R6M
*EXPOSED PAD MUST ALSO BE GROUNDED
C1
4.7
μ
F
CERAMIC
FB
C
T
V
C
SW
D1
LT1310
L1
5.6
μ
H
GND*
LOAD CURRENT (mA)
0
35
E
45
40
55
50
65
60
75
70
100
200
1310 F01b
400
300
85
80
90
3.3V
IN
V
OUT
= 12V
5V
IN
Figure 1. 5V to 12V Converter Synchronized at 1.6MHz
LT1310 Efficiency
DESCRIPTIOU
FEATURES
APPLICATIU
TYPICAL APPLICATIO
U
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