APL5910 Anpec Electronics Coropration, APL5910 Datasheet - Page 4

• Manufacturer Part Number: APL5910
• Description: 1A, Ultra Low Dropout (0.12v Typical) Linear Regulator
• Manufacturer: Anpec Electronics Coropration

APL5910
Electrical Characteristics (Cont.)
Refer to the typical application circuits. These specifications apply over V
otherwise specified. Typical values are at T
Pin Description
PROTECTIONS
ENABLE AND SOFT-START
POWER-OK AND DELAY
Copyright
Rev. A.2 - Aug., 2008
Symbol
V
I
SHORT
THPOK
T
T
I
LIM
SD
SS
NO.
1
2
3
4
5
6
7
Short Current-Limit Level
Rising POK Threshold Voltage
Current-Limit Level
Short Current-Limit Blanking
Time
Thermal Shutdown Temperature T
Thermal Shutdown Hysteresis
EN Logic High Threshold Voltage V
EN Hysteresis
EN Pull-High Current
Soft-Start Interval
POK Threshold Hysteresis
POK Pull-Low Voltage
POK Debounce Interval
POK Delay Time
PIN
ANPEC Electronics Corp.
VCNTL
NAME
VOUT
Parameter
POK
VIN
EN
NC
FB
Power-OK signal output pin. This pin is an open-drain output used to indicate the status of output
voltage by sensing FB voltage. This pin is pulled low when output voltage is not within the
Power-OK voltage window.
Active-high enable control pin. Applying and holding the voltage on this pin below the enable
voltage threshold shuts down the output. When re-enabled, the IC undergoes a new soft-start
process. When left this pin open, an internal pull-up current (5 A typical) pulls the EN voltage and
enables the regulator.
Main supply input pin for voltage conversions. A decoupling capacitor ( 10 F recommended) is
usually connected near this pin to filter the voltage noise and improve transient response. The
voltage on this pin is monitored for Power-On-Reset purpose
Bias voltage input pin for internal control circuitry. Connect this pin to a voltage source (+5V
recommended). A decoupling capacitor (1 F typical) is usually connected near this pin to filter
the voltage noise. The voltage at this pin is monitored for Power-On-Reset purpose.
No Connection.
Output pin of the regulator. Connecting this pin to load and output capacitors (10 F at least) is
required for stability and improving transient response. The output voltage is programmed by the
resistor-divider connected to FB pin. The VOUT can provide 1A (max.) load current to loads.
During shutdown, the output voltage is quickly discharged by an internal pull-low MOSFET.
Voltage Feedback Pin. Connecting this pin to an external resistor divider receives the feedback
voltage of the regulator.
J
=25
T
T
V
From beginning of soft-start
EN=GND
V
POK sinks 5mA
V
From V
V
J
J
J
FB
EN
FB
FB
POK
=25 C
= -40 ~ 125 C
o
rising
<0.2V
<falling POK voltage threshold
C.
rising
rising
FB
=V
Test Conditions
THPOK
to rising edge of the
4
CNTL
FUNCTION
=5V, V
IN
=1.5V, V
Min.
1.7
1.4
0.6
0.5
0.3
90
1
-
-
-
-
-
-
-
-
OUT
=1.2V, and T
APL5910
Typ.
0.25
170
2.1
0.4
1.6
0.8
0.6
50
80
92
10
5
8
2
-
www.anpec.com.tw
A
= -40 ~ 85
Max.
2.5
1.1
0.4
94
1
4
-
-
-
-
-
-
-
-
-
o
C, unless
Unit
mV
ms
ms
ms
o
o
%
%
A
V
V
C
C
A
s