CM3002 Datasheet, PDF (1/17 Pages) California Micro Devices Corp – Micropower 1.0A Low Dropout CMOS Regulators

CM3002
Micropower 1.0A Low Dropout CMOS Regulators
Features
• Regulated output options: 1.5, 1.8, 2.5 and
3.3 volts
• 1.0A output current
• Operates from 3.3V supply (5.0V for CM3002-33)
• Very low dropout voltage on CM3002-33
products (500mV@1A)
• Enable Output Control for power-up sequencing
• Low quiescent operating current (< 600µA typical)
• Current limit protection
• Thermal overload protection
• Reverse voltage protection
• Available in thermally-enhanced SOIC-8 and
MSOP-8 (CM3002-33MA/MF) packages
• Lead-free versions available
Applications
• Low Voltage "Core" Processors
• Peripheral Adapter Cards
• Portable/Battery-Powered Devices
Table 1: CM3002 Regulator Family
PRODUCT
CM3002-15SA/SF
CM3002-18SA/SF
CM3002-25SA/SF
CM3002-33SA/SF
CM3002-33MA/MF
INPUT
VOLTAGE
3.3V
3.3V
3.3V
5.0V or 3.3V
5.0V or 3.3V
OUTPUT VOLTAGE
1.5V
1.8V
2.5V
3.3V
3.3V
Product Description
The CM3002 family of regulators are very low dropout
regulators that deliver up to 1.0A of load current at a
fixed voltage output. Input and output voltage options
for the CM3002 family devices are presented in
Table 1.
Operating from a single input supply, these devices are
ideally suited for powering low voltage “core” proces-
sors, especially where a 3.3V source is already avail-
able.
These regulators feature a dedicated control input (EN,
Active High) for power-up sequencing flexibility. When
this input is taken low, the regulator output is disabled.
In this state, the supply current will drop to a low level
to ensure all the internal control circuitry still remains
active. This provides excellent start-up response when-
ever the device comes out of shutdown.
The CM3002 family of regulators is fully protected,
offering both overload current limiting and high temper-
ature thermal shutdown. Housed in space saving ther-
mally-enhanced SOIC-8 and MSOP-8 (CM3002-33MA/
MF) packages, these devices ensure maximum junc-
tion-to-ambient power dissipation.
The CM3002 is available with optional lead-free finish-
ing.
Typical Application Circuit
Simplified Electrical Schematic
V_CC
V_CC
V_OUT
Supply
Voltage ₊
+
EN
GND
V_OUT
EN
-
1µF
+
100nF 10µF
GND
Thermal Sensor
&
Current Limit
Reference
Voltage
+ ^EN
-
V_OUT
© 2004 California Micro Devices Corp. All rights reserved.
08/16/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: [phone] ▲ Fax: [phone] ▲ www.calmicro.com
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