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参数资料
| 型号： | LTC3803ES6-5#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK PWM TSOT23-6 |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 230kHz |
| 占空比： | 90% |
| 电源电压： | 4 V ~ 8.1 V |
| 降压： | 无 |
| 升压： | 无 |
| 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 ~ 125°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 剪切带 (CT) |
| 相关产品： | 732-2263-6-ND - TRANS FLYBACK LTC3803 16.9UH 732-2263-1-ND - TRANS FLYBACK LTC3803 16.9UH 732-2263-2-ND - TRANS FLYBACK LTC3803 16.9UH |
| 其它名称： | LTC3803ES6-5 LTC3803ES6-5#TRMCT LTC3803ES6-5-ND |
LTC3803-5
Constant Frequency
Current Mode Flyback
DC/DC Controller in ThinSOT
FEATURES
DESCRIPTION
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V IN and V OUT Limited Only by External Components
4.8V Undervoltage Lockout Threshold
Operating Junction Temperature from –55°C to
150°C
Adjustable Slope Compensation
Internal Soft-Start
Constant Frequency 200kHz Operation
±1.5% Reference Accuracy
Current Mode Operation for Excellent Line and Load
Transient Response
No Minimum Load Requirement
Low Quiescent Current: 240μA
Low Pro?le (1mm) SOT-23 Package
The LTC ? 3803-5 is a constant frequency current mode
?yback controller optimized for driving N-channel MOSFETs
in high input voltage applications. The LTC3803-5 operates
from inputs as low as 5V. Constant frequency operation
is maintained down to very light loads, resulting in less
low frequency noise generation over a wide range of load
currents. Slope compensation can be programmed with
an external resistor.
The LTC3803-5 provides ±1.5% output voltage accuracy
and consumes only 240μA of quiescent current. Ground-
referenced current sensing allows LTC3803-5-based con-
verters to accept input supplies beyond the LTC3803-5’s
absolute maximum V CC . For simplicity, the LTC3803-5 can
APPLICATIONS
be powered from a high V IN through a resistor, due to its
internal shunt regulator. An internal undervoltage lockout
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42V and 12V Automotive Power Supplies
Telecom Power Supplies
Auxiliary/Housekeeping Power Supplies
Power Over Ethernet
shuts down the IC when the input voltage is too low to
provide suf?cient gate drive to the external MOSFET.
The LTC3803-5 is available in a low pro?le (1mm) 6-lead
SOT-23 (ThinSOT?) package.
L , LT, LTC, LTM, Burst Mode, 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.
TYPICAL APPLICATION
Dual Output Wide Input Range Converter
Ef?ciency and Power Loss
vs Output Power
V IN
6V TO 50V
PDZ6.8B
22k
1μF
100V
× 3
VPH5-0155
10MQ100N
13V/0.3A
20mA MIN
LOAD
22μF
90
85 V IN = 12V
V IN = 8V
3.0
2.5
10nF
7.5k
8.06k
LTC3803-5
I TH /RUN NGATE
GND V CC
V FB SENSE
MMBTA42
PHM25NQ10T
4.7k
0.012Ω
1μF
100V
1μF
100V
B3100
10V
6.5V/1.2A
47μF
10V
80
75
70
65
V IN = 24V
V IN = 48V
2.0
1.5
1.0
0.5
0.1μF
57.6k
60
V IN = 12V
0 2
4
6 8
10
0
12
ALL CAPACITORS ARE X7R, TDK
38035 TA01
OUTPUT POWER (W)
38035 TA01b
38035fd
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3803ES6TRMPBF | 制造商:Linear Technology 功能描述:DC-DC Controller Flyback 75V TSOT23-6 |
| LTC3803HS6#PBF | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Flyback Controller 6-Pin TSOT-23 Bulk 制造商:Linear Technology 功能描述:Switching Regulator IC 制造商:Linear Technology 功能描述:IC, FLYBACK DC/DC CONTROLLER, 6-TSOT-23; Primary Input Voltage:72V; No. of Outputs:1; Output Current:1A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:150C; MSL:MSL 1 - Unlimited; Output Current Max:2A ;RoHS Compliant: Yes |
| LTC3803HS6#TRMPBF | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 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:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| LTC3803HS6#TRPBF | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 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) |
| LTC3803HS6-3#PBF | 制造商:Linear Technology 功能描述:Bulk |
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