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参数资料
| 型号： | LT3845IFE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 26/26页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16TSSOP |
| 标准包装： | 95 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 500kHz |
| 电源电压： | 4 V ~ 60 V |
| 降压： | 是 |
| 升压： | 无 |
| 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： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
LT3845
TYPICAL APPLICATION
9V-16V to 3.3V at 5A DC/DC Converter, Frequency Synchronization Range 150kHz to 300kHz,
Capable of Withstanding 60V Transients, All Ceramic Capacitors, Soft-Start and Burst Mode Enabled
V IN
9V TO 16V
60V TRANSIENTS
C IN
2.2μF
100V
×4
C IN2
0.1μF
100V
R3
1.1M
C5
1μF
16V
C3
8200pF
V IN
SHDN
C SS
LT3845
BOOST
TG
SW
M1
Si7850DP
L1
10μH
R SENSE
0.01Ω
V OUT
3.3V
BURST_EN
V FB
V CC
BG
D2 BAS521
M2
Si7850DP
D1
B160
5A
SENSE
R1
10k
R2 C1
16.8k 100pF
SYNC
R4
10k
R5
100k
V C
SYNC
f SET
SGND
PGND
+
SENSE –
C4
2.2 μ F
16V
C OUT
100 μ F
6.3V
×4
C2
5600pF
R6
130k
3845 TA04
C IN : TDK C4532X7R2A225K
C OUT : MURATA GRM32ER60J107ME20
L1: VISHAY IHLP-5050FD-01
M1, M2: VISHAY Si7850DP
RELATED PARTS
PART NUMBER
LT3800
DESCRIPTION
High Voltage Low I Q Synchronous Step-Down DC/DC
Controller
COMMENTS
Fixed 200kHz Operating Frequency 4V≤ V IN ≤ 60V, 1.23V ≤ V OUT ≤ 36V,
I Q = 100μA, TSSOP-16
LT3844
LT3724
High Voltage Low I Q Switching Regulator DC/DC Controller Synchronizable Fixed Operating Frequency 100kHz to 600kHz,
4V ≤ V IN ≤ 60V, 1.23V ≤ V OUT ≤ 36V, I Q = 120μA, TSSOP-16
High Voltage Low I Q Switching Regulator DC/DC Controller Fixed 200kHz Operating Frequency 4V ≤ V IN ≤ 60V, 1.23V ≤ V OUT ≤ 36V,
I Q = 100μA, TSSOP-16
LTC3812-5
LTC3810
LT3758
LT3757
LTC3824
LTC3834/
LTC3834-1
LTC3835/
LTC3835-1
LTC3857/
LTC3857-1
LTC3858/
LTC3858-1
High Voltage Synchronous Step-Down DC/DC Controller
100V Synchronous Step-Down DC/DC Controller
100V Boost, Flyback, SEPIC and Inverting Controller
Boost, Flyback, SEPIC and Inverting Controller
High Voltage Low I Q DC/DC Controller, 100% Duty Cycle
Low I Q , Synchronous Step-Down Controllers
Low I Q , Synchronous Step-Down Controllers
Low I Q , Dual Output 2-Phase Synchronous Step-Down
DC/DC Controller with 99% Duty Cycle
Low I Q , Dual Output 2-Phase Synchronous Step-Down
DC/DC Controller with 99% Duty Cycle
4.2V ≤ V IN ≤ 60V, 0.8V ≤ V OUT ≤ 0.9V IN , TSSOP-16
6.2V ≤ V IN ≤ 100V, 0.8V ≤ V OUT ≤ 0.9V IN , SSOP-28
5.5V ≤ V IN ≤ 100V, Selectable Operating Frequency 100kHz to 1MHz
3mm × 3mm DFN-10 and MSOP-10E Package
2.9V ≤ V IN ≤ 40V, Selectable Operating Frequency 100kHz to 1MHz
3mm × 3mm DFN-10 and MSOP-10E Package
Selectable Fixed Operating Frequency 200kHz to 600kHz 4V ≤ V IN ≤ 60V,
0.8V ≤ V OUT ≤ V IN , I Q = 40μA, MSOP-10E
30μA I Q , 4V ≤ V IN ≤ 36V, 0.8V ≤ V OUT ≤ 10V
80μA I Q , 4V ≤ V IN ≤ 36V, 0.8V ≤ V OUT ≤ 10V
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V IN ≤ 38V, 0.8V ≤ V OUT ≤ 24V, I Q = 50μA
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V IN ≤ 38V, 0.8V ≤ V OUT ≤ 24V, I Q = 170μA,
3845fd
26 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0110 REV D ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3845IFETRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency |
| LT3845IFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency |
| LT3845MPFE | 制造商:Linear Technology 功能描述:Step Down Controller 16-Pin TSSOP EP 制造商:Linear Technology 功能描述:HIGH VOLTAGE SYNCHRONOUSCURRENT MODE STEP-DOWNCONTROLLER WITH ADJUSTABLEOPERATING FREQUENCY |
| LT3845MPFE#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16TSSOP 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:2,000 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:50% 电源电压:9 V ~ 10 V 降压:无 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 包装:带卷 (TR) |
| LT3845MPFE#PBF | 制造商:Linear Technology 功能描述:IC SYNC STEP-DOWN CONTROLLER 16-TSSOP |
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