- 您现在的位置：买卖IC网 > PDF目录44987 > LT3958IUHE#PBF (LINEAR TECHNOLOGY CORP) SWITCHING REGULATOR, PQCC36 PDF资料下载
参数资料
| 型号： | LT3958IUHE#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, PQCC36 |
| 封装： | 5 X 6 MM, LEAD FREE, PLASTIC, QFN-36 |
| 文件页数： | 1/28页 |
| 文件大小： | 320K |
| 代理商： | LT3958IUHE#PBF |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
LT3958
1
3958f
n Wide Input Voltage Range: 5V to 80V
n Single Feedback Pin for Positive or Negative
Output Voltage
n Internal 3.3A/84V Power Switch
n Current Mode Control Provides Excellent Transient
Response
n Programmable Operating Frequency (100kHz to
1MHz) with One External Resistor
n Synchronizeable to an External Clock
n Low Shutdown Current < 1μA
n Internal 7.2V Low Dropout Voltage Regulator
n Programmable Input Undervoltage Lockout with
Hysteresis
n Programmable Soft-Start
n Thermally Enhanced QFN (5mm
× 6mm) Package
TYPICAL APPLICATION
DESCRIPTION
High Input Voltage,
Boost, Flyback, SEPIC and
Inverting Converter
The LT3958 is a wide input range, current mode, DC/DC
converter which is capable of generating either positive
or negative output voltages. It can be congured as either
a boost, yback, SEPIC or inverting converter. It features
an internal low side N-channel power MOSFET rated for
84V at 3.3A and driven from an internal regulated 7.2V
supply. The xed frequency, current-mode architecture
results in stable operation over a wide range of supply
and output voltages.
The operating frequency of LT3958 can be set with an
external resistor over a 100kHz to 1MHz range, and can
be synchronized to an external clock using the SYNC pin.
A minimum operating supply voltage of 5V, and a low
shutdown quiescent current of less than 1μA, make the
LT3958 ideally suited for battery-powered systems.
The LT3958 features soft-start and frequency foldback
functions to limit inductor current during start-up.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No RSENSE and ThinSOT are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Patents pending.
High Efciency Boost Converter
FEATURES
APPLICATIONS
n Automotive
n Telecom
n Industrial
Efciency vs Output Current
SENSE2
SENSE1
LT3958
33μH
VIN
SW
GND
FBX
RT
SS
INTVCC
EN/UVLO
SYNC
SGND
53.6k
VC
3958 TA01a
392k
41.2k
300kHz
4.7μF
0.33μF
10k
10nF
464k
15.8k
4.7μF
2
VOUT
48V
0.5A
VIN
12V TO 40V
4.7μF
OUTPUT CURRENT (mA)
0
70
EFFICIENCY
(%)
75
80
85
90
95
100
200
300
400
3958 TA01b
500
VIN = 24V
相关PDF资料 |
PDF描述 |
|---|---|
| LT3958EUHE#PBF | SWITCHING REGULATOR, PQCC36 |
| LT3958EUHE#TRPBF | SWITCHING REGULATOR, PQCC36 |
| LT4180MPGN#PBF | POWER SUPPLY SUPPORT CKT, PDSO24 |
| LT4180IGN#PBF | POWER SUPPLY SUPPORT CKT, PDSO24 |
| LT4180EGN#TRPBF | POWER SUPPLY SUPPORT CKT, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3958IUHETRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Input Voltage, Boost, Flyback, SEPIC and Inverting Converter |
| LT3959 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Input Voltage Range Boost/SEPIC/Inverting Converter with 6A, 40V Switch |
| LT3959EFE#PBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG ADJ 38TSSOP |
| LT3959EFE#PBF | 制造商:Linear Technology 功能描述:DC-DC CONV BOOST/INVERTING TSSOP-38 制造商:Linear Technology 功能描述:DC-DC CONV, BOOST/INVERTING, TSSOP-38 |
| LT3959EFE#TRPBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG ADJ 38TSSOP |
发布紧急采购，3分钟左右您将得到回复。