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參數資料
| 型號： | T6319A-55AXG |
| 廠商： | TM Technology, Inc. |
| 英文描述： | Replacement for Texas Instruments part number 54AS822/BLA. Buy from authorized manufacturer Rochester Electronics. |
| 中文描述： | 高效率2倍充電泵 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 100K |
| 代理商： | T6319A-55AXG |
TE
CH
tm
T6319A
TM Technology Inc. reserves the right
P. 1
Publication Date: MAY. 2007
to change products or specifications without notice.
Revision: A
High Efficiency 2X charge Pump
FEATURES
Wide Input Range: 2.5V to 5.5V
Available Output Voltages:
2.5V/2.7V/3.0V/3.3V/4.0V/4.5V /5.0V/5.5V
Automatic Step-Up/Step-Down Operation
Low Input Current Ripple
Low Output Voltage Ripple
Minimum Number of External
Component
s-
No Inductors
Shutdown Mode
Thermal Protection
High Output Current :
V
IN
>3.0V Output Current 100mA
Max.
250mA for pulsed loads
Available Package : SOT23-6/
lead-free
APPLICATIONS
Smart Card Readers
Cellular Phones
White LED Camera Flash
White LED Backlighting
Battery Backup Supplies
GENERAL DESCRIPTION
The The T6319A is a switched capacitor
voltage converter, that produces a regulated,
low ripple output voltage from an unregulated
input voltage. A wide-input supply voltage of
2.5V to 5.5V makes the T6319A ideal for a
variety of battery sources, such as single cell
Li-Ion, or two and three cell nickel or alkaline-
based chemistries.
The input voltage may vary above and below
the output voltage and the output will remain
in regulation. It works equally well for step-up
or step-down applications without the need for
an inductor, providing low EMI DC/DC
conversion. The high switching frequency
allows the use of small surface-mount
capacitors, saving board space and reducing
cost. The T6319A is thermally protected.
PART NUMBER EXAMPLES
Part no.
Output
Voltage
Package type
T6319A-25AXG
2.5V
SOT23-6
lead-free
SOT23-6
lead-free
T6319A-30AXG
3.0V
T6319A-50AXG
5.0V
SOT23-6
lead-free
SOT23-6
lead-free
T6319A-55AXG
5.5V
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