tm
TE
CH
T6319A
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
Components-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
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.
T6319A-25AXG
T6319A-30AXG
Output
Voltage
2.5V
3.0V
Package type
SOT23-6
lead-free
APPLICATIONS
•
Smart Card Readers
•
Cellular Phones
•
White LED Camera Flash
•
White LED Backlighting
•
Battery Backup Supplies
SOT23-6
lead-free
T6319A-50AXG
T6319A-55AXG
5.0V
5.5V
SOT23-6
lead-free
SOT23-6
lead-free
TM Technology Inc. reserves the right
to change products or specifications without notice.
P. 1
Publication Date: MAY. 2007
Revision: A
TMT [ TAIWAN MEMORY TECHNOLOGY ]
