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参数资料
| 型号： | LT3439EFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/12页 |
| 文件大小： | 0K |
| 描述： | IC REG PSH-PLL CTRLR ISO 16TSSOP |
| 标准包装： | 2,500 |
| 类型： | 推挽式控制器，隔离式 |
| 输出数： | 1 |
| 输入电压： | 2.8 V ~ 17.5 V |
| 频率 - 开关： | 20kHz ~ 250kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-TSSOP-EP |
LT3439
TYPICAL APPLICATIO
Low Noise 12V to –12V, 6W Push-Pull DC Transformer
OPTIONAL
LT1175
33 μ H
V IN
12V
C1
4.7 μ F
C T
680pF
C2
0.1 μ F
11
5
6
7
R T
16.9k
13
V IN
SHDN COLA
LT3439
SYNC COLB
C T
R T R SL
GND PGND
10 1, 16
3
14
4
?
?
R SI
16.9k
T1
D1
?
C3 C4
15 μ F 15 μ F
?
D2
C1: TDK C3216X5R1C475K
C3, C4: TDK C4532X5R1E156M
C5: TEK C3216X5R1C475K
D1, D2: MBRA130LT3
L1: COILCRAFT DO1608C-333
L2
IN
I LIM2
I LIM4
GND
OUT
SENSE
R1 R2
150k 324k
V OUT
–12V
500mA
C5
4.7 μ F
3439 TA03
T1: COILTRONICS CTX02-16076
RELATED PARTS
PART NUMBER
LT1533
LT1534/LT1534-1
LT1683
LT1738
LT1763
LT1764/LT1764A
LT1962
LT1963/LT1963A
LT1964
DESCRIPTION
Slew Rate Controlled Ultralow Noise 1A Switching Regulator
Slew Rate Controlled Ultralow Noise 2A Switching Regulators
Slew Rate Controlled Ultralow Noise Push-Pull Controller
Slew Rate Controlled Ultralow Noise DC/DC Controller
500mA, Low Noise Micropower, LDO
3A, Low Noise, Fast Transient Response, LDOs
300mA, Low Noise Micropower, LDO
1.5A, Low Noise, Fast Transient Response, LDOs
200mA, Low Noise Micropower, Negative LDO
COMMENTS
V IN : 2.7V to 23V, I Q (Supply): 12mA, I SD : <12 μ A, SO-16, Low
Noise: <100 μ V P-P , Independent Control of Switch Voltage and
Current Slew Rates
V IN : 2.7V to 23V, I Q (Supply): 12mA, I SD : <12 μ A, SO-16, Low
Noise: <2mV P-P , Independent Control of Switch Voltage and
Current Slew Rates
V IN : 2.7V to 20V, I Q (Supply): 25mA, I SD : <24 μ A, SSOP-20, Low
Noise: <200 μ V P-P , Independent Control of Switch Voltage and
Current Slew Rates
V IN : 2.7V to 20V, I Q (Supply): 12mA, I SD : <24 μ A, SSOP-20, Greatly
Reduced Conducted and Radiated EMI, Independent Control of
Switch Voltage and Current Slew Rates
V IN : 1.8V to 20V, V OUT(MIN) : 1.22V, Dropout Voltage (V at I OUT ):
0.30V, I Q (Supply): 30 μ A, V OUT : 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V,
I SD : <1 μ A, SO-8, Low Noise: <20 μ V RMSP-P
V IN : 2.7V to 20V, V OUT(MIN) : 1.21V, Dropout Voltage (V at I OUT ):
0.34V, I Q (Supply): 1mA, V OUT : 1.8V, 2.5V, 3.3V, I SD : <1 μ A,
DD, TO220-5, Low Noise: <40 μ V RMSP-P , “A” Version Stable with
Ceramic Capacitors
V IN : 1.8V to 20V, V OUT(MIN) : 1.22V, Dropout Voltage (V at I OUT ):
0.27V, I Q (Supply): 30 μ A, V OUT : 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V,
I SD : <1 μ A, MS8, Low Noise: <20 μ V RMSP-P
V IN : 2.1V to 20V, V OUT(MIN) : 1.21V, Dropout Voltage (V at I OUT ):
0.34V, I Q (Supply): 1mA, V OUT : 1.5V, 1.8V, 2.5V, 3.3V, I SD : <1 μ A,
DD, TO220-5, SOT-223, SO-8, Low Noise: <40 μ V RMSP-P , “A” Version
Stable with Ceramic Capacitors
V IN : –0.9V to –20V, V OUT(MIN) : –1.21V, Dropout Voltage (V at I OUT ):
0.34V, I Q (Supply): 30 μ A, V OUT : Adj, –5V, I SD : <3 μ A, ThinSOT TM ,
Low Noise: <30 μ V RMSP-P , Stable with Ceramic Capacitors
ThinSOT is a trademark of Linear Technology Corporation.
sn3439 3439fs
(408) 432-1900 q FAX: (408) 434-0507 www.linear.com
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
q
LT/TP 0303 2K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2002
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