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參數(shù)資料
| 型號： | CM3015-33ST |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Micropower, 300mA Low Dropout CMOS Regulator |
| 中文描述： | 微功耗，300mA低壓差穩(wěn)壓器的CMOS |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 508K |
| 代理商： | CM3015-33ST |
2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
09/14/04
CM3015
PRELIMINARY
Note 1: Tantalum, electrolytic or low cost ceramic capacitors may be used.
PIN DESCRIPTIONS
SOT23-5
PIN(S)
SOT23-6
PIN(S)
MSOP-8
PIN(S)
NAME
DESCRIPTION
1
1
2
V
IN
V
IN
is the input power source for the regulator. If this input is within a few
inches of the main supply filter, a capacitor may not be necessary. Other-
wise, an input filter capacitor of about 1-10
μ
F will ensure adequate filter-
ing.
2
2
5-8
GND
The negative reference for all voltages.
3
3
1
EN
Enable input. When this input is taken low (< 0.4V), the regulator is dis-
abled. In this state, the supply current will drop to near zero.
4
4
4
BYP
Reference Bypass Pin. Connect to an external capacitor for noise reduc-
tion. A 10nF-100nF size ceramic capacitor is recommended.
5
4
VSENSE
This pin sets V
OUT
with an external divider: V
OUT
= VSENSE(1+ R
1
/R
2
).
R1 is the upper resistor, like the internal divider shown on the block dia-
gram on page 1.
5
6
3
V
OUT
V
OUT
is the output voltage used to power the load. An output capacitor
may not be required for stability, but its use can improve transient
response, noise performance and power supply ripple rejection for fre-
quencies over ~100kHz (see note 1).
V
IN
GND
EN
V
OUT
SENSE
BYP
1
2
6
5
3
4
C
TOP VIEW
PACKAGE / PINOUT DIAGRAM
(Note 1)
Notes:
1) These drawings are not to scale.
V
IN
GND
EN
V
OUT
BYP
1
2
5
3
4
C
2
TOP VIEW
1
2
3
4
8
7
6
5
EN
VIN
VOUT
BYP
GND
GND
GND
GND
TOP VIEW
5-PIN SOT23
CM3015-12ST,-15ST
,
-18ST,-25ST,-30ST,-33ST
6-PIN SOT23
CM3015-00ST
8-PIN MSOP
CM3015-12MA,-15MA
,
-18MA,-25MA,-30MA,-33MA
8-PIN MSOP
CM3015-00MA
1
2
3
4
8
7
6
5
EN
VIN
VOUT
VSENSE
GND
GND
GND
GND
TOP VIEW
C
1
2
C
1
2) See Ordering Information section for part marking details.
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