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参数资料
| 型号： | LT3844EFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 24/24页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST INV PWM 16TSSOP |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 95% |
| 电源电压： | 4 V ~ 60 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 是 |
| 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： | 带卷 (TR) |
LT3844
TYPICAL APPLICATION
12V to 48V 50W Step-Up Converter with 400kHz Switching Frequency
R SENSE
0.01Ω
D1
BAV99
SHDN
V FB
SENSE +
V IN
12V
+
C IN
33μF
25V
2
C1
0.1μF
25V
C4
4700pF
1
R4
4.7M 2
3
4
5
6
V IN BOOST
C SS SW
V C
LT3844
TG
BURST_EN V CC
PGND
16
15
14
13
12
11
C5
2.2μF
25V
L1
6.8μH
D2
M1
+
C OUT1
330μF
V OUT
48V
50W
C OUT2
220μF
f SET
R2
383k
R1
10k
C2
120pF
R6
40k
C3
4700pF
7
SYNC
8
R5
33.2k
SENSE –
SGND
10
9
M1 = VISHAY, Si7370DP
L1 = VISHAY, IHLP5050FD-01
D2 = DIODES INC., PDS560
C IN = SANYO, 25SVP33M
C OUT1 = SANYO, 63CE220FST
RELATED PARTS
3844 TA05
C OUT2 = TDK, C4532X7R2A225K
R SENSE = IRC, LRF2512-01-R010-F
PART NUMBER
LT1339
LTC1624
LTC1702A
LTC1735
LTC1778
LT3010
DESCRIPTION
High Power Synchronous DC/DC Controller
Switching Controller
Dual 2-Phase Synchronous DC/DC Controller
Synchronous Step-Down DC/DC Controller
No R SENSE Synchronous DC/DC Controller
50mA, 3V to 80V Linear Regulator
COMMENTS
V IN up to 60V, Drivers 10000pF Gate Capacitance, I OUT < 20A
Buck, Boost, SEPIC, 3.5V ≤ V IN ≤ 36V; 8-Lead SO Package
550kHz Operation, No R SENSE , 3V < V IN < 7V, I OUT < 20A
3.5V < V IN < 36V, 0.8V < V OUT < 6V, Current Mode, I OUT < 20A
4V < V IN < 36V, Fast Transient Response, Current Mode, I OUT < 20A
1.275V < V OUT < 60V, No Protection Diode Required,
8-Lead MSOP Package
LT3430/LT3431
Monolithic 3A, 200kHz/500kHz Step-Down Regulator 5.5V < V IN < 60V, 0.1Ω Saturation Switch, 16-Lead SSOP Package
LTC 3703/LTC3703-5 100V Synchronous Switching Regulator Controllers
?
No R SENSE , Voltage Mode Control, GN16 Package
LT3724
LT3800
High Voltage Current Mode Switching Regulator
Controllers
High Voltage Synchronous Regulator Controller
V IN up to 60V, I OUT ≤ 5A, 16-Lead TSSOP FE Package,
Onboard Bias Regulator, Burst Mode Operation, 200kHz Operation
V IN up to 60V, I OUT ≤ 20A, Current Mode, Onboard Bias Regulator,
Burst Mode Operation, 16-Lead TSSOP FE Package
3844fb
24 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0309 REV B ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3844IFE | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Down 4V to 60V Input 16-Pin TSSOP EP |
| LT3844IFE#PBF | 功能描述:IC REG CTRLR BST INV PWM 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:2,500 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) |
| LT3844IFE#TRPBF | 功能描述:IC REG CTRLR BST INV PWM 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:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LT3844IFEPBF | 制造商:Linear Technology 功能描述:DC-DC Controller Step-Down 4-60V TSSOP16 |
| LT3844IFE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency |
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