TK71530ASCL TOKO, TK71530ASCL Datasheet - Page 8

• Manufacturer Part Number: TK71530ASCL
• Description: IC VOLTAGE REGULATOR 3.0V SOT-23
• Manufacturer: TOKO

Specifications of TK71530ASCL

• Regulator Topology: Positive Fixed
• Voltage - Output: 3V
• Voltage - Input: Up to 18V
• Voltage - Dropout (typical): 0.16V @ 100mA
• Number Of Regulators: 1
• Current - Output: 155mA
• Operating Temperature: -30°C ~ 80°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Other names: Q1300249A

OUTPUT VOLTAGE (V
The output voltage is specified with V
and I
DROPOUT VOLTAGE (V
The dropout voltage is the difference between the input
voltage and the output voltage at which point the regulator
starts to fall out of regulation. Below this value, the output
voltage will fall as the input voltage is reduced. It is
dependent upon the load current and the junction tempera-
ture.
CONTINUOUS OUTPUT CURRENT (I
Normal operating output current. This is limited by pack-
age power dissipation.
LINE REGULATION (Line Reg)
Line regulation is the ability of the regulator to maintain a
constant output voltage as the input voltage changes. The
line regulation is specified as the input voltage is changed
from V
max 18 V.
LOAD REGULATION (Load Reg)
Load regulation is the ability of the regulator to maintain a
constant output voltage as the load current changes. It is
a pulsed measurement to minimize temperature effects
with the input voltage set to V
regulation is specified under the output current step con-
dition 5 mA to 100 mA.
QUIESCENT CURRENT (I
The quiescent current is the current which flows through
the ground terminal under no load conditions (I
GROUND CURRENT (I
Ground current is the current which flows through the
ground pin(s). It is defined as I
current.
TK715xxAS
Page 8
OUT
IN
= V
= 5 mA.
OUT(TYP)
DEFINITION AND EXPLANATION OF TECHNICAL TERMS
+ 1 V to V
GND
OUT
DROP
Q
)
)
)
IN
IN
)
IN
= V
= V
- I
OUT(TYP)
OUT
OUT(TYP)
IN
, excluding control
= (V
OUT
+1 V. The load
)
OUT(TYP)
+ 6 V or V
OUT
= 0 mA).
+ 1 V)
IN
=
RIPPLE REJECTION RATIO (RR)
Ripple rejection is the ability of the regulator to attenuate
the ripple content of the input voltage at the output. It is
specified with 200 mVrms, 100 Hz superimposed on the
input voltage, where V
decoupling capacitor is set to 2.2 µF and the load current
is set to 10 mA. Ripple rejection is the ratio of the ripple
content of the output vs. the input and is expressed in dB.
REVERSE VOLTAGE PROTECTION
Reverse voltage protection prevents damage due to the
output voltage being higher than the input voltage. This
fault condition can occur when the output capacitor re-
mains charged and the input is reduced to zero, or when
an external voltage higher than the input voltage is applied
to the output side.
REDUCTION OF OUTPUT NOISE
Although the architecture of the Toko regulators are de-
signed to minimize semiconductor noise, further reduction
can be achieved by the selection of external components.
The obvious solution is to increase the size of the output
capacitor. Please note that several parameters are af-
fected by the value of the capacitors and bench testing is
recommended when deviating from standard values.
PACKAGE POWER DISSIPATION (P
This is the power dissipation level at which the thermal
sensor is activated. The IC contains an internal thermal
sensor which monitors the junction temperature. When the
junction temperature exceeds the monitor threshold of
150 °C, the IC is shut down. The junction temperature
rises as the difference between the input power (V
and the output power (V
temperature rise is greatly affected by the mounting pad
configuration on the PCB, the board material, and the
ambient temperature. When the IC mounting has good
thermal conductivity, the junction temperature will be low
even if the power dissipation is great. When mounted on
the recommended mounting pad, the power dissipation of
the SOT23-3 is increased to 400 mW. For operation at
ambient temperatures over 25 °C, the power dissipation of
the SOT23-3 device should be derated at 3.2 mW/°C. To
IN
OUT
= V
x I
OUT(TYP)
OUT
March 2001 TOKO, Inc.
) increases. The rate of
+ 2.0 V. The output
D
)
IN
x I
IN
)