參數(shù)資料
型號： LTC3703EGN
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Isolated Flyback Switching Regulator with 9V Output
中文描述： 5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 0.150 INCH, PLASTIC, SSOP-16
文件頁數(shù)： 1/32頁
文件大?。?/td> 445K
代理商： LTC3703EGN
LTC3703-5
1
37035f
APPLICATIU
DESCRIPTIOU
The LTC
3703-5 is a synchronous step-down switching
regulator controller that can directly step-down voltages
from up to 60V, making it ideal for telecom and automotive
applications. The LTC3703-5 drives external logic level
N-channel MOSFETs using a constant frequency (up to
600kHz), voltage mode architecture.
A precise internal reference provides 1% DC accuracy. A
high bandwidth error amplifier and patented* line feed
forward compensation provide very fast line and load
transient response. Strong 1
gate drivers allow the
LTC3703-5 to drive multiple MOSFETs for higher current
applications. The operating frequency is user program-
mable from 100kHz to 600kHz and can also be synchro-
nized to an external clock for noise-sensitive applications.
Current limit is programmable with an external resistor
and utilizes the voltage drop across the synchronous
MOSFET to eliminate the need for a current sense resistor.
For applications requiring up to 100V operation, refer to
the LTC3703 data sheet.
PARAMETER
LTC3703-5
Maximum V
IN
60V
MOSFET Gate Drive
4.5V to 15V
V
CC
UV
+
3.7V
V
CC
UV
–
3.1V
FEATURES
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
*U.S. Patent Numbers: 5408150, 5055767, 6677210, 5847554, 5481178, 6304066, 6580258;
Others Pending.
I
High Voltage Operation: Up to 60V
I
Large 1
Gate Drivers (with 5V Supply)
I
No Current Sense Resistor Required
I
Step-Up or Step-Down DC/DC Converter
I
Dual N-Channel MOSFET Synchronous Drive
I
Excellent Transient Response and DC Line Regulation
I
Programmable Constant Frequency: 100kHz to
600kHz
I
±
1% Reference Accuracy
I
Synchronizable up to 600kHz
I
Selectable Pulse Skip Mode Operation
I
Low Shutdown Current: 25
μ
A Typ
I
Programmable Current Limit
I
Undervoltage Lockout
I
Programmable Soft-Start
I
16-Pin Narrow SSOP and 28-Pin SSOP Packages
60V Synchronous
Switching Regulator Controller
Efficiency vs Load Current
High Efficiency High Voltage Step-Down Converter
LTC3703-5
MODE/SYNC
FSET
COMP
FB
I
MAX
INV
RUN/SS
GND
V
IN
BOOST
TG
SW
VCC
DRV
CC
BG
BGRTN
22
μ
F
×
2
1000pF
2200pF
10k
100
113k
1%
21.5k
1%
10
12k
30k
0.1
μ
F
V
6V TO 60V
8
μ
H
D1
MBR1100
V
OUT
5V
5A
270
μ
F
16V
MMDL770T1
V
CC
5V
0.1
μ
F
37035 TA04
10
μ
F
1
μ
F
+
+
+
Si7850DP
Si7850DP
22
μ
F
470pF
LOAD CURRENT (A)
0
E
%
)
100
95
90
85
80
4
37053 TA04b
1
2
3
5
V
IN
= 12V
V
IN
= 42V
V
IN
= 24V
I
48V Telecom and Base Station Power Supplies
I
Networking Equipment, Servers
I
Automotive and Industrial Control
LTC3703
100V
9.3V to 15V
8.7V
6.2V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3703EGN#PBF 功能描述:IC REG CTRLR BST PWM VM 16-SSOP 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 標準包裝: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 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
LTC3703EGN#PBF 制造商:Linear Technology 功能描述:DC/DC Converter IC
LTC3703EGN#TR 功能描述:IC REG CTRLR BST PWM VM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3703EGN#TRPBF 功能描述:IC REG CTRLR BST PWM VM 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3703EGN-5 功能描述:IC REG CTRLR BST PWM VM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
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