參數(shù)資料
型號(hào)： TAR5S19U
廠商： Toshiba Corporation
英文描述： Point Regulators (Low-Dropout Regulator)
中文描述： 點(diǎn)穩(wěn)壓器（低壓差穩(wěn)壓器）
文件頁(yè)數(shù)： 7/23頁(yè)
文件大?。?/td> 632K
代理商： TAR5S19U
TAR5S15U~TAR5S50U
2003-02-10
7
5. Example of Characteristics when Ceramic Capacitor is Used
Shown below is the stable operation area, where the output voltage does not oscillate, evaluated using a
Toshiba evaluation circuit. The equivalent series resistance (ESR) of the output capacitor and output current
determines this area. TAR5SxxU Series devices operate stably even when a ceramic capacitor is used as the
output capacitor.
If a ceramic capacitor is used as the output capacitor and the ripple frequency is 30 kHz or more, the ripple
rejection differs from that when a tantalum capacitor is used. This is shown below.
Toshiba recommend that users check that devices operate stably under the intended conditions of use.
Examples of safe operating area characteristics
(TAR5S15U)Stable Operating Area
100
Evaluation Circuit for Stable Operating Area
Ripple Rejection Characteristic (f
=
10 kHz~300 kHz)
(TAR5S30U) Ripple Rejection – f
70
Ceramic 10
μ
F
Tantalum10
μ
F
Output current IOUT (mA)
(TAR5S28U)Stable Operating Area
100
(TAR5S50U)Stable Operating Area
Output current IOUT (mA)
Output current IOUT (mA)
E
)
E
)
E
)
R
Frequency f (Hz)
TAR5S
**U
GND
C
IN
Ceramic
V
IN
=
V
OUT
+
1 V
CONTROL
C
NOISE
=
0.01
μ
F
R
OUT
ESR
C
OUT
Ceramic
Capacitors used for evaluation
Made by Murata C
IN
: GRM40B105K
C
OUT
: GRM40B105K/GRM40B106K
30
0
10 k
10
20
40
50
60
Ceramic
2.2
μ
F
Ceramic
1
μ
F
300 k
100 k
Tantalum 2.2
μ
F
Tantalum 1
μ
F
@VIN
=
4.0 V, CNOISE
=
0.01
μ
F,
CIN
=
1
μ
F, Vripple
=
500 mVp-p,
Iout
=
10 mA, Ta
=
25°C
1000 k
80
40
0.02
0.1
1
10
0
20
150
60
120
100
140
@VIN
=
2.5 V, CNOISE
=
0.01
μ
F,
CIN
=
1
μ
F, Cout
=
1
μ
F~10
μ
F,
Ta
=
25°C
Stable Operating Area
80
40
0.02
0.1
1
10
100
0
20
150
60
120
100
140
@VIN
=
6.0 V, CNOISE
=
0.01
μ
F,
CIN
=
1
μ
F, Cout
=
1
μ
F~10
μ
F,
Ta
=
25°C
Stable Operating Area
80
40
0.02
0.1
1
10
0
20
150
60
120
100
140
@VIN
=
3.8 V, CNOISE
=
0.01
μ
F,
CIN
=
1
μ
F, Cout
=
1
μ
F~10
μ
F,
Ta
=
25°C
Stable Operating Area
相關(guān)PDF資料
PDF描述
TAR5S20U Point Regulators (Low-Dropout Regulator)
TAR5S21U Point Regulators (Low-Dropout Regulator)
TAR5S22U Point Regulators (Low-Dropout Regulator)
TAR5S23U Point Regulators (Low-Dropout Regulator)
TAR5S24U Point Regulators (Low-Dropout Regulator)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAR5S20 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Point Regulators (Low-Dropout Regulator)
TAR5S20U 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Point Regulators (Low-Dropout Regulator)
TAR5S21 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Point Regulators (Low-Dropout Regulator)
TAR5S21U 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Point Regulators (Low-Dropout Regulator)
TAR5S22 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Point Regulators (Low-Dropout Regulator)
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