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參數資料
| 型號： | LTC3406AIS5#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | 1 MM HEIGHT, LEAD FREE, PLASTIC, MO-193, TSOT-23, 5 PIN |
| 文件頁數： | 1/16頁 |
| 文件大小： | 299K |
| 代理商： | LTC3406AIS5#PBF |
LTC3406A
1
3406afa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
1.5MHz, 600mA
Synchronous Step-Down
Regulator in ThinSOT
The LTC3406A is a high efciency monolithic synchro-
nous buck regulator using a constant frequency, current
mode architecture. Supply current during operation is only
20μA, dropping to ≤1μA in shutdown. The 2.5V to 5.5V
input voltage range makes the LTC3406A ideally suited
for single Li-Ion battery-powered applications. 100% duty
cycle provides low dropout operation, extending battery
runtime portable systems. Automatic Burst Mode opera-
tion increases efciency at light loads, further extending
battery runtime.
Switching frequency is internally set at 1.5MHz, allowing
the use of small surface mount inductors and capacitors.
The internal synchronous switch increases efciency
and eliminates the need for an external Schottky diode.
Low output voltages are easily supported with the 0.6V
feedback reference voltage. The LTC3406A is available in
a low prole (1mm) ThinSOT package.
Efciency vs Load Current
■
High Efciency: Up to 96%
■
Very Low Quiescent Current: Only 20A
■
Low Output Ripple Voltage During Burst Mode
Operation
■
600mA Output Current
■
2.5V to 5.5V Input Voltage Range
■
1.5MHz Constant Frequency Operation
■
No Schottky Diode Required
■
Low Dropout Operation: 100% Duty Cycle
■
±2% 0.6V Reference
■
Shutdown Mode Draw ≤1A Supply Current
■
Internal Soft-Start Limits Inrush Current
■
Current Mode Operation for Excellent Line and
Load Transient Response
■
Overtemperature Protected
■
Low Prole (1mm) ThinSOTTM Package
■
Cellular Telephones
■
Wireless and DSL Modems
■
Digital Still Cameras
■
Media Players
■
Portable Instruments
■
Point of Load Regulation
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 5481178, 6580258.
VIN
4.7μF
CER
VIN
LTC3406A
RUN
2.2μH
22pF
619k
309k
3406A TA01
SW
VFB
GND
10μF
CER
VOUT
1.8V
600mA
OUTPUT CURRENT (mA)
30
EFFICIENCY
(%)
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3406A TA01b
0
1
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.8V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3406AIS5-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| LTC3406B | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| LTC3406B-1.2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| LTC3406B-1.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 600mA Synchronous Step-Down egulator in ThinSOT |
| LTC3406B-1.8 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 600mA Synchronous Step-Down egulator in ThinSOT |
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