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參數(shù)資料
| 型號： | CMPWR100S |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 119K |
| 代理商： | CMPWR100S |
2000 California Micro Devices Corp. All rights reserved.
6
10/20/2000
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
CMPWR100
CALIFORNIA MICRO DEVICES
Typical Transient Characteristics
The transient characterization test setup shown below
includes the effective source impedance of the V
supply (R
). This was measured to be approximately
0.2
. It is recommended that this effective source
impedance be no greater than 0.25
to ensure precise
switching is maintained during V
CC
selection and
deselection.
Both the rise and fall times during V
power-up/down
sequencing were controlled to be of 20 millisecond
duration. This is considered to represent worst case
conditions for most application circuits.
A maximum rated load current of 200mA was used
during characterization, unless specified otherwise.
During a selection or deselection transition the DC load
current is switching from V
to V
and vice versa. In
addition to the normal load current there may also be an
in-rush current for charging/discharging the load capaci-
tor. The total current pulse being applied to either V
AUX
or
V
is equal to the sum of the dc load and the corre-
sponding in-rush current.
The oscilloscope traces of V
power-up/down show the
full bandwidth response at the V
CC
and V
OUT
pins under
full load (200mA) conditions.
See Application Note AP-211 for more details
+
–
V
CC
V
CC
5V
TR = 20ms
TF= 20ms
V
AUX
V
AUX
3.3V
DRIVE
V
OUT
V
OUT
GND
GND
CMPWR100
R
S
0.2
4.7μF
0.1μF
+
0.1μF
4.7μF
(200mA)
16.5
+
GND
Transient Characteristics Text Set-up
V
power-up Cold Start (V
= 0V).
This shows the
output response during an initial V
power up with V
AUX
not present. Full priority is assigned to the regulator
whenever V
is not present. This forces the regulator to
be fully active under all V
CC
conditions.
The Drive logic output is actively pulled up to V
and
ramps up accordingly with the input supply voltage.
3.02V
Drive
200mA Load
V
CC
V
OUT
M 5.00ms
1.00V
5.00V
Ch1
Ch3
3
1
1.00V
10.0kS/s
Tek
1 Acqs
Ch1
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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: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:未知廠家 功能描述:Power Supply Supervisor |
| CMPWR101 | 制造商:ONSEMI 制造商全稱: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:California Micro Devices Corp 功能描述:250mA SMARTOR Regulator with V switch |
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