- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382259 > LTC3803 (Linear Technology Corporation) Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC3803 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT |
| 中文描述： | 恒定頻率電流模式反激式DC / DC控制器，采用ThinSOT |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 181K |
| 代理商： | LTC3803 |
1
LTC3803
3803i
Constant Frequency
Current Mode Flyback
DC/DC Controller in ThinSOT
August 2003
FEATURES
DESCRIPTIO
N
U
APPLICATIOU
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
I
V
IN
and V
OUT
Limited Only by External Components
I
Adjustable Slope Compensation
I
Internal Soft-Start
I
Constant Frequency 200kHz Operation
I
±
1.5% Reference Accuracy
I
Current Mode Operation for Excellent Line and Load
Transient Response
I
No Minimum Load Requirement
I
Low Quiescent Current: 240
μ
A
I
Low Profile (1mm) SOT-23 Package
I
Telecom Power Supplies
I
42V and 12V Automotive Power Supplies
I
Auxiliary/Housekeeping Power Supplies
I
Power Over Ethernet
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Final Electrical Specifications
5V Output Nonisolated Telecom Housekeeping Power Supply
TYPICAL APPLICATIO
U
The LTC
3803 is a constant frequency current mode
flyback controller optimized for driving 6V-rated N-channel
MOSFETs in high input voltage applications. 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 provides
±
1.5% output voltage accuracy
and consumes only 240
μ
A of quiescent current. Ground-
referenced current sensing allows LTC3803-based con-
verters to accept input supplies beyond the LTC3803’s
absolute maximum V
CC
. A micropower hysteretic start-up
feature allows efficient operation at high input voltages.
For simplicity, the LTC3803 can also be powered from a
high V
IN
through a resistor, due to its internal 9.4V shunt
regulator. An internal undervoltage lockout shuts down
the LTC3803 when the input voltage falls below 4.6V,
guaranteeing at least 4.6V of gate drive to the external
MOSFET.
The LTC3803 is available in a low profile (1mm) 6-lead
SOT-23 (ThinSOT
TM
) package.
V
CC
I
TH
/RUN
LTC3803
GND
NGATE
SENSE
V
FB
UPS840
300
μ
F*
6.3V
X5R
4.7
μ
F
100V
X5R
10
μ
F
10V
X5R
V
OUT
5V
2A MAX
3803 TA01
68m
20k
10k
56k
0.0022
μ
F
105k
FDC2512
T1: COOPER CTX02-15242
*THREE 100
μ
F UNITS IN PARALLEL
T1
V
36V TO 72V
Efficiency vs Load Current
I
OUT
(A)
0.1
E
50
60
70
10
3803 TA02
40
30
0
1
20
10
90
80
V
IN
= 36V
V
IN
= 72V
V
IN
= 60V
V
IN
= 48V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC3803ES6 | Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT |
| LTC3806 | Synchronous Flyback DC/DC Controller |
| LTC3806EDE | Synchronous Flyback DC/DC Controller |
| LTC3831 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LTC3831EGN | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3803ES6 | 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Flyback Controller 9.2V to 75V Input 6-Pin TSOT-23 |
| LTC3803ES6#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:IC, DC-DC CONV; Primary Input Voltage:8V; No. of Outputs:1; Output Current:1A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:125C; MSL:MSL 1 - Unlimited; Leaded Process Compatible:Yes ;RoHS Compliant: Yes |
| LTC3803ES6#TR | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3803ES6#TRM | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC3803ES6#TRMPBF | 功能描述:IC REG CTRLR FLYBK PWM TSOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。