参数资料
型号: LT3800EFE#TRPBF
厂商: Linear Technology
文件页数: 24/24页
文件大小: 0K
描述: IC REG CTRLR INV PWM CM 16-TSSOP
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 220kHz
占空比: 95%
电源电压: 4 V ~ 60 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
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)

LT3800
TYPICAL APPLICATION
24V-48V to –12V 75W Inverting DC/DC Converter with V IN UVLO
V IN
24V TO 48V
R7
1M
+
C9
56μF
63V
2
C10
1μF
100V
X7R
4
D1
BAS19
D2
1N4148
R8
1M
V IN
BOOST
R3
1M
2N3906
R6
130k
R2
174k
1%
R5
C1 1nF
R1 200k
NC
LT3800
SHDN
C SS
BURST_EN
V FB
TG
SW
NC
V CC
BG
C2 1μF
16V X7R
C6
1μF
16V
X7R
M1
FDD3570
M2
FDD3570
L1
15μH
C7
150pF
100V
DS1
B180
R S
0.01Ω
20k
1%
V C
PGND
R4
39k
C3
SENSE – SENSE +
SGND
470pF
C4
100pF
L1: COEV MGPWL-00099
C8
4.7μF
16V
X7R
+
C5
270μF
16V
SPRAGUE SP V OUT
–12V
3800 TA04a
75W
Ef?ciency and Power Loss
100
90
V IN = 24V
12
10
80
70
60
50
40
0.1
V IN = 48V
V IN = 36V
V IN = 36V LOS     S
1
8
6
4
2
0
10
I LOAD (A)
3800 TA04b
RELATED PARTS
LT 1934
PART NUMBER
LTC1735
LTC1778
?
LT1952
LT1976
LT3010
LT3430/LT3431
LTC3703
LTC3703-5
LTC3727-1
LTC3728L
DESCRIPTION
Synchronous Step-Down Controller
No R SENSE ? Synchronous Step-Down Controller
Micropower Step-Down Switching Regulator
Synchronous Single Switch Forward Converter
60V Switching Regulator
3V to 80V LDO
3A, 60V Switching Regulators
100V Synchronous Step-Down Controller
60V Synchronous Step-Down Controller
High V OUT 2-Phase Dual Step-Down Controller
2-Phase, Dual Synchronous Step-Down Controller
COMMENTS
4V ≤ V IN ≤ 36V, 0.8V ≤ V OUT ≤ 6V, I OUT ≤ 20A
Current Mode Without Using Sense Resistor, 4V ≤ V IN ≤ 36V
3.2V ≤ V IN ≤ 34V, 300mA Switch, ThinSOT? Package
25W to 500W Isolated Power Supplies, Small Size, High Ef?ciency
3.2V ≤ V IN ≤ 60V, 1.5A Switch, 16-Lead TSSOP
50mA Output Current, 1.275V ≤ V OUT ≤ 60V
5.5V ≤ V IN ≤ 60V, 200kHz, 16-Lead TSSOP
Large 1Ω Gate Drivers, No R SENSE
Large 1Ω Gate Drivers, No R SENSE
0.8V ≤ V OUT ≤ 14V, PLL: 250kHz to 550kHz
550kHz, PLL: 250kHz to 550kHz, 4V ≤ V IN ≤ 36V
3800fc
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417 (408)432-1900 ● FAX: (408) 434-0507     www.linear.com ●
24 Linear Technology Corporation
LT 0911 REV C ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2005
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参数描述
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LT3800IFE#TRPBF 功能描述:IC REG CTRLR INV PWM CM 16-TSSOP 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