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| 型號(hào)： | CMPWR100S |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 119K |
| 代理商： | CMPWR100S |
2000 California Micro Devices Corp. All rights reserved.
10/20/2000
7
CMPWR100
CALIFORNIA MICRO DEVICES
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
V
Power-up (V
= 3.0V).
This shows the output
response as V
approaches the select threshold during
power-up. The auxiliary voltage, V
is set to a low level
of 3.0V. When V
reaches the select threshold, a
modest level of in-rush current is required to further
charge the output capacitor resulting in V
disturbance
of 100mV. The built-in hysteresis of 150mV ensures the
regulator remains enable throughout the transient.
The output smoothly ramps up from the auxiliary voltage
to the regulated output voltage.
V
OUT
offset = 3.3V, V
CC
offset = 4.2V
V
power-down (V
= 3.3V).
This shows the output
response as V
approaches the deselect threshold
during a power-down transition. When V
reaches
V
(4.1V), the regulator turns off. This results in a V
CC
disturbance of approximately 50mV. The built-in hyster-
esis of 150mV ensures the regulator remains disabled
throughout the transient.
The output voltage experiences a disturbance of
approximately 100mV during the transition. (Much of this
is attributed to the transient response at the input to the
V
AUX
supply.)
V
OUT
offset = 3.3V, V
CC
offset = 4.2V
Typical Transient Characteristics cont
’
d
V
power-up (V
= 3.3V). This shows the output
response as V
approaches the select threshold during
a power-up when V
is present (3.3V). The output
capacitor is already fully charged. When V
reaches the
select threshold (4.25V), the step change in V
line
current causes a disturbance of 50mV. The built-in
hysteresis of 150mV ensures the regulator remains
enabled throughout the transient.
The output disturbance during supply changeover is
less than 100mV with full load (200mA) conditions.
V
OUT
offset = 3.3V, V
CC
offset = 4.2V
2.5V
Drive
200mA Load
V
CC
V
OUT
M 20.0μs
1.00mV
5.00V
Ch1
Ch3
3
1
1.00mV
2.50MS/s
Tek
1 Acqs
Ch3
2.5V
Drive
200mA Load
V
CC
V
OUT
M 20.0μs
100mV
5.00V
3
2
Ch3
Ch2 1.00mV
2.50MS/s
Tek
1 Acqs
Ch3
2.5V
Drive
200mA Load
V
CC
V
OUT
M 20.0μs
100mV
5.00V
Ch1
Ch3
3
1
1.00mV
2.50MS/s
Tek
1 Acqs
Ch3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CMPWR100S/R | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Power Supply Supervisor |
| CMPWR100S/T | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Power Supply Supervisor |
| CMPWR101 | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:250mA SmartORTM Regulator with VAUX Switch |
| CMPWR101R | 功能描述:低壓差穩(wěn)壓器 - LDO 250mA Regulator with Vaux Switch RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| CMPWR101S | 制造商:CALMIRCO 制造商全稱(chēng):California Micro Devices Corp 功能描述:250mA SMARTOR Regulator with V switch |
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