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参数资料
| 型号： | TK11231CMCL |
| 厂商： | TOKO INC |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.37 V DROPOUT, PDSO6 |
| 封装： | SOT-23, 6 PIN |
| 文件页数： | 10/22页 |
| 文件大小： | 542K |
| 代理商： | TK11231CMCL |
TOKO Inc.
IC Data Sheet
TK112xxC
GC3-H026
GC3-H026B
B
BPage
Page
Page 18
Definition of Term
Definition of Termssss
The output voltage tables are specified with a test voltage of Vin=Output Voltage (Typ.) + 1V.
Output Voltage
Output Voltage ( Vout )
( Vout )
The output voltage is specified with (Vin = Output Voltage (Typ.) + 1V) and output current
(Iout=5mA).
Maximum Output Current
Maximum Output Current ( Iout Max )
( Iout Max )
The output current is measured when the output voltage decreases to (VoutTyp. x 0.9). The input
voltage is (Output Voltage (Typ.) + 1V). The maximum output current is measured in a short
time so that it is not influenced by the temperature of the chip. The output current decreases
with low voltage operation.
Please refer to the "Low input voltage-output current" graph for 2.1V or less.
Dropout Voltage
Dropout Voltage ( Vdrop )
( Vdrop )
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 (Iout) and the junction
temperature (Tj). The input voltage is gradually decreased below the test voltage. It is the
voltage difference between the input and the output when the output voltage decreases by
100mV.
Line Regulation
Line Regulation (((( Lin
Lin
Lin Reg
Reg
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 (Output
Voltage (Typ.) + 1V) to (Output Voltage (Typ.) + 6V). This measurement is not influenced by the
temperature of the IC and is measured in a short time.
Load Regulation
Load Regulation (((( Loa
Loa
Loadddd Reg
Reg
Reg ))))
Load regulation is the ability of the regulator to maintain a constant output voltage as the load
current changes. The input voltage is set to (Output Voltage (Typ.) + 1V). The output voltage
change is measured as the load current changes from to 5 to 100mA and from 5 to 200mA. This
measurement is not influenced by the temperature of the IC and is measured in a short time.
Quiescent Current
Quiescent Current (((( Iq )
Iq )
The quiescent current is the current which flows through the ground terminal under no load
conditions (Io=0mA).
Ripple Rejection
Ripple Rejection ( RR )
( 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 the input voltage = ( Vout + 1.5V ) , Iout=10mA, CL=1.0
F
and Cnp=0.01
F An Alternating Current source of (f=1KHz and 200mVRMS) is superimposed to
the power-supply voltage. Ripple rejection is the ratio of the ripple content of the output vs. the
input and is expressed in dB. It is typically about 80dB at 1KHz. The ripple rejection improves
when the value of the capacitor at the noise bypass terminal in the circuit is large. However,
the on/off response worsens.
Standby Current
Standby Current....(((( Istandby
Istandby
Istandby ))))
Standby current is the current which flows into the regulator when the control voltage is made 0
volts. It is measured with an input voltage of 8V.
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