AP7217A Diodes, Inc., AP7217A Datasheet - Page 8

• Manufacturer Part Number: AP7217A
• Description: 3.3v 600ma Cmos Ldo
• Manufacturer: Diodes, Inc.

Application Note
Current Limit Protection
When output current at OUT pin is higher than current limit
threshold, the current limit protection will be triggered and clamp
the output current to approximately 750mA to prevent
over-current and to protect the regulator from damage due to
overheating.
Marking Information
(1) SOP-8L
(2) SOP-8L-EP
AP7217A Rev. 1
Vin
Iin
C
IN
AP7217A
GND
Part No.
Part No.
Iq
Logo
Logo
OUT
(Continued)
Iout
ESR
Co
8
1
8
1
Vout
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Short circuit protection
When VR
200mV, short circuit protection will be triggered and clamp the
output current to approximately 50mA.
VD
---Open-Drain Active-Low reset output---
In general, VD
The AP7217A microprocess (uP) supervisory circuitry asserts a
guaranteed logic-low reset during power-up and power-down.
Reset is asserted asserts when V
and remain asserted for at least t
threshold.
As long as V
logic "0". When V
asserted after a time delay defined by t
OUT
5
5
4
4
E
(reset output)
OUT
IN
pin is shorted to GND or VR
is lower than the reset threshold, VD
OUT
G : Green
E : SOP-8L-EP
Year : "07" = 2007
Year : "07" = 2007
Internal code
G : Green
Internal code
Xth week : 01~52
Xth week : 01~52
is pulled up by a resistor (100Kohm) to V
IN
become higher than V
"08" = 2008
"08" = 2008
3.3V 600mA CMOS LDO
RP
IN
after V
is below the reset threshold
RP
AP7217A
.
OUT
IN
©
rises above the reset
voltage is less than
Diodes Incorporated
TH
, a logic "1" is
APRIL 2008
OUT
remains at
IN
.