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參數(shù)資料
| 型號： | LTC3204 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Low Noise Regulated Charge Pump in 2 X 2 DFN |
| 中文描述： | 低噪聲電荷泵的2 × 2 DFN封裝 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 604K |
| 代理商： | LTC3204 |
LTC3204-3.3/LTC3204-5/
LTC3204B-3.3/LTC3204B-5
Low Noise Regulated
Charge Pump in 2
×
2 DFN
1
3204fa
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
The LTC
3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5
are low noise, constant frequency (1.2MHz) switched ca-
pacitor voltage doublers. The LTC3204-3.3/LTC3204B-3.3
can produce a regulated output voltage of 3.3V
from a minimum input voltage of 1.8V (2 alkaline cells)
whereas the LTC3204-5/LTC3204B-5 can produce 5V from
a minimum of 2.7V (Li-Ion battery) input.
LTC3204-3.3/LTC3204-5 feature automatic Burst Mode
operation at light loads to maintain low supply current
whereas LTC3204B-3.3/LTC3204B-5 feature constant
frequency operation at any load. Built-in soft-start circuitry
prevents excessive inrush current during start-up. Thermal
shutdown and current-limit circuitry allow the parts to
survive a continuous short-circuit from V
OUT
to GND.
High switching frequency minimizes overall solution
footprint by allowing the use of tiny ceramic capaci-
tors. In shutdown, the load is disconnected from the
input and the quiescent current is reduced to <1μA. The
LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are
available in a low profile (0.75mm) 6-lead 2mm × 2mm
DFN package.
■
Fixed 3.3V or 5V Outputs
■
V
IN
Range:
1.8V to 4.5V (LTC3204-3.3/LTC3204B-3.3)
2.7V to 5.5V (LTC3204-5/LTC3204B-5)
■
Output Current:
Up to 150mA (LTC3204-5/LTC3204B-5)
Up to 50mA (LTC3204-3.3/LTC3204B-3.3)
■
Automatic Burst Mode
Operation with I
Q
= 48μA
(LTC3204-3.3/LTC3204-5)
■
Constant Frequency Operation at All Loads
(LTC3204B-3.3/LTC3204B-5)
■
Low Noise Constant Frequency (1.2MHz) Operation*
■
Built-In Soft-Start Reduces Inrush Current
■
Shutdown Disconnects Load from Input
■
Shutdown Current <1μA
■
Short-Circuit/Thermal Protection
■
Available in Low Profile 6-Lead DFN Package
APPLICATIU
■
2 AA Cell to 3.3V
■
Li-Ion to 5V
■
USB On-The-Go Devices
■
White LED Drivers
■
Handheld Devices
Output Ripple vs Load Current
Burst Mode is a registered trademark of Linear Technology Corporation.
*Protected by U.S. Patents including 6411531.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
OFF ON
V
IN
LTC3204-5/
LTC3204B-5
GND
SHDN
V
OUT
C
–
C
+
2.2
μ
F
2.2
μ
F
2.2
μ
F
5V
2.7V TO 5.5V
3204 TA01a
1, 7
2
3
4
5
6
OUTPUT CURRENT (mA)
0
0
O
5
10
15
20
30
25
50
75
100
3204 TA01b
125
150
25
OUTPUT CAPACITANCE = 2.2
μ
F
V
IN
= 3.6V
LTC3204B-5
LTC3204-5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC3204BEDC-3.3 | Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204BEDC-5 | Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204-5 | Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204B-3.3 | Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204B-5 | Low Noise Regulated Charge Pump in 2 X 2 DFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3204-3.3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204B-3.3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204B-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Regulated Charge Pump in 2 X 2 DFN |
| LTC3204BEDC-3.3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Regulated Charge Pump in 2 X 2 DFN |
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