参数资料
型号: LT3759EMSE#PBF
厂商: Linear Technology
文件页数: 1/32页
文件大小: 0K
描述: IC REG CTRLR BST INV PWM 12-MSOP
产品培训模块: LT3759 DC to DC Controller
标准包装: 37
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
电源电压: 1.6 V ~ 42 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 12-TSSOP (0.118",3.00mm 宽)裸露焊盘
包装: 管件
LT3759
Wide V IN Range: 1.6V to 42V
Positive or Negative Output Voltage Programming
PGOOD Output Voltage Status Report
Accurate 50mV SENSE Threshold Voltage
Programmable Soft-Start
Programmable Operating Frequency (100kHz to 1MHz)
Synchronizable to an External Clock
Low Shutdown Current < 1μA
INTV CC Regulator Supplied from V IN or DRIVE
Programmable Input Undervoltage Lockout with
Datacom and Industrial Boost, SEPIC and Inverting
Distributed Power Supplies
Portable Electronic Equipment
Automotive
FEATURES
n
n
with a Single Feedback Pin
n
n
n
n
with One External Resistor
n
n
n
n
Hysteresis
APPLICATIONS
n
Converters
n
n
n
Wide Input Voltage Range
Boost/SEPIC/Inverting
Controller
DESCRIPTION
The LT ? 3759 is a wide input range, current mode, DC/DC
controller which is capable of regulating either positive or
negative output voltages from a single feedback pin. It can
be configured as a boost, SEPIC or inverting converter.
The LT3759 drives a low side external N-channel power
MOSFET. An internal LDO regulator draws power from
V IN or DRIVE to provide up to a 4.75V supply for the gate
driver. The fixed frequency, current-mode architecture
results in stable operation over a wide range of supply
and output voltages. The operating frequency of LT3759
can be set over a 100kHz to 1MHz range with an external
resistor, or can be synchronized to an external clock using
the SYNC pin.
The LT3759 features soft-start and frequency foldback
functions to limit inductor current during start-up and
output short-circuit. A window comparator on the FBX pin
reports via the PGOOD pin, providing output voltage status
indication. The device is available in a 12-Lead exposed
pad MSOP package.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT and No R SENSE are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners. Protected by U.S. Patents including 7825665.
TYPICAL APPLICATION
2.5V to 36V Input, 12V Output SEPIC Converter
Excellent for Automotive 12V Post Regulator
Efficiency vs Output Current
V IN
2.5V TO
36V
C IN
4.7μF
×4
105k
EN/UVLO
V IN
L1A
GATE
4.7μF ×2
M1
L1B
C OUT1
10μF
V OUT
12V
0.5A, 2.5V ≤ V IN ≤ 8V
2A, 8V < V IN ≤ 36V
100
95
V IN = 12V
100k
118k
LT3759
SENSE
5m
90
PGOOD
85
TIE TO GND
IF NOT USED
41.2k
200kHz
SYNC
RT
SS
VC
DRIVE
FBX
GND INTV CC
105K
+
C OUT2
47μF
×4
80
75
0
0.5
1 1.5
OUTPUT CURRENT (A)
2
2.5
0.1μF
7.5k
22nF
4.7μF
15.8K
3759 TA01b
3759 TA01a
3759fc
For more information www.linear.com/3759
1
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LT3759HMSE#PBF 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LT3759HMSE#TRPBF 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LT3759IMSE#PBF 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LT3759IMSE#TRPBF 功能描述:IC REG CTRLR BST INV PWM 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LT375B 制造商:EDSYN 功能描述:TIP SPADE 1.5X12.2MM