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參數(shù)資料
| 型號： | LT3430IFE |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 6.5 A SWITCHING REGULATOR, 228 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 302K |
| 代理商： | LT3430IFE |
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1
LT3430
sn3430 3430is
High Voltage, 3A,
200kHz Step-Down
Switching Regulator
August 2002
I
Wide Input Range: 5.5V to 60V
I
3A Peak Switch Current
I
Small Thermally Enhanced 16-Pin TSSOP Package
I
Constant 200kHz Switching Frequency
I
Saturating Switch Design: 0.1
I
Peak Switch Current Maintained Over
Full Duty Cycle Range
I
Effective Supply Current: 2.5mA
I
Shutdown Current: 30
μ
A
I
1.2V Feedback Reference Voltage
I
Easily Synchronizable
I
Cycle-by-Cycle Current Limiting
The LT
3430 is a 200kHz monolithic buck switching regu-
lator that accepts input voltages up to 60V. A high efficiency
3A, 0.1
switch is included on the die along with all the nec-
essary oscillator, control and logic circuitry. A current mode
architecture provides fast transient response and excellent
loop stability.
Special design techniques and a new high voltage process
achieve high efficiency over a wide input range. Efficiency
is maintained over a wide output current range by using the
output to bias the circuitry and by utilizing a supply boost
capacitor to saturate the power switch. Patented circuitry
maintains peak switch current over the full duty cycle range.
A shutdown pin reduces supply current to 30
μ
A and a SYNC
pin can be externally synchronized from 228kHz to 700kHz
with a logic level input.
The LT3430 is available in a thermally enhanced 16-pin
TSSOP package.
I
Industrial and Automotive Power Supplies
I
Portable Computers
I
Battery Chargers
I
Distributed Power Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
5V, 2A Buck Converter
Efficiency vs Load Current
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
BOOST
V
IN
6
2, 5
10
12
30BQ060
15.4k
V
OUT
5V
2A
3, 4
15
14
11
220pF
0.022
μ
F
*
FOR INPUT VOLTAGES BELOW 7.5V, SOME RESTRICTIONS MAY APPLY
UNITED CHEMI-CON
1, 8, 9, 16
LT3430
SHDN
SYNC
SW
BIAS
FB
V
C
GND
0.68
μ
F
100
μ
F 10V
SOLID
TANTALUM
22
μ
H
MMSD914TI
4.99k
3430 TA01
4.7
μ
F 100V
CERAMIC
ON
OFF
V
IN
5.5V*
TO 60V
+
3.3k
LOAD CURRENT (A)
0
E
80
90
100
2.0
3430 TA02
70
60
50
0.5
1.0
1.5
2.5
V
IN
= 12V
V
IN
= 42V
V
= 5V
L = 27
μ
H
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.
Final Electrical Specifications
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3430IFE#PBF | 功能描述:IC REG BUCK ADJ 3A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3430IFE#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC |
| LT3430IFE#TR | 功能描述:IC REG BUCK ADJ 3A 16TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3430IFE#TRPBF | 功能描述:IC REG BUCK ADJ 3A 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3430IFE-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Voltage, 3A,200kHz/100kHz Step-Down Switching Regulators |
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