DatasheetsPDF.com

Voltage Regulator. CM3132 Datasheet

DatasheetsPDF.com

Voltage Regulator. CM3132 Datasheet
















CM3132 Regulator. Datasheet pdf. Equivalent













Part

CM3132

Description

Triple Linear Voltage Regulator



Feature


PRELIMINARY CM3132 Triple Linear Voltage Regulator for DDR-I Memory and CPU Fea tures • • • Fully integrated powe r solution for a CPU/SOC core and DDR-I memory ICs Lowest system cost and smal lest footprint with just three external output capacitors Three linear regulat ors for VCORE (1.5A), VDDQ (1.5A), and VTT (0.5A, source-sink) Product Descri ption The CM3132 provide.
Manufacture

California Micro Devices

Datasheet
Download CM3132 Datasheet


California Micro Devices CM3132

CM3132; s an integrated power solution for a CPU core and DDR-I memory for consumer and other embedded applications. It featur es three independent linear regulators for VCORE, VDDQ and VTT supply regulati on. The default voltage for VCORE is 1. 5V. The SENSE_CORE pin can be tied to G ND for the default voltage, or through a resistor divider for setting the CPU core in the range .


California Micro Devices CM3132

1.2V to 1.8V. VDDQ is internally set to 2.50V and the VTT voltage is always hal f the VDDQ voltage. A capacitor should be connected to each of the three outpu ts. There are two enable pins, EN_CORE and EN_DDR. When EN_CORE is set high, t he CORE regulator is disabled. When EN_ DDR is set high, the two DDR regulators are disabled to minimize overall syste m power dissipatio.


California Micro Devices CM3132

n when memory is in standby mode. These two enable pins allow power sequencing of the DDR and CORE regulator blocks in dependently. The CM3132 is available in a PSOP-8 package that has excellent th ermal dissipation. It is available with optional lead-free finishing. • VDD Q www.DataSheet4U.com • • • • = 2.5V, VTT = VDDQ/2 ±25mV VCORE i s adjustable, with a default ou.





Part

CM3132

Description

Triple Linear Voltage Regulator



Feature


PRELIMINARY CM3132 Triple Linear Voltage Regulator for DDR-I Memory and CPU Fea tures • • • Fully integrated powe r solution for a CPU/SOC core and DDR-I memory ICs Lowest system cost and smal lest footprint with just three external output capacitors Three linear regulat ors for VCORE (1.5A), VDDQ (1.5A), and VTT (0.5A, source-sink) Product Descri ption The CM3132 provide.
Manufacture

California Micro Devices

Datasheet
Download CM3132 Datasheet




 CM3132
PRELIMINARY
CM3132
Triple Linear Voltage Regulator for DDR-I Memory and CPU
Features
• Fully integrated power solution for a CPU/SOC
core and DDR-I memory ICs
• Lowest system cost and smallest footprint with just
three external output capacitors
• Three linear regulators for VCORE (1.5A), VDDQ
(1.5A), and VTT (0.5A, source-sink)
www.DataSheet4U.cVoDmDQ = 2.5V, VTT = VDDQ/2 ±25mV
• VCORE is adjustable, with a default output of 1.5V
• Over-temperature and reverse current protection
• Overcurrent protection for all regulators
• PSOP-8 package with integrated heat spreader
• Lead-free version available
Applications
• Core CPU and DDR-I memory power for:
Set Top Boxes, DVD Players, Games
Digital TVs, Flat Panel Displays
Printers, Digital Projectors
Embedded systems
Communications systems
Product Description
The CM3132 provides an integrated power solution for a
CPU core and DDR-I memory for consumer and other
embedded applications. It features three independent linear
regulators for VCORE, VDDQ and VTT supply regulation. The
default voltage for VCORE is 1.5V. The SENSE_CORE pin
can be tied to GND for the default voltage, or through a
resistor divider for setting the CPU core in the range 1.2V to
1.8V. VDDQ is internally set to 2.50V and the VTT voltage is
always half the VDDQ voltage. A capacitor should be con-
nected to each of the three outputs.
There are two enable pins, EN_CORE and EN_DDR. When
EN_CORE is set high, the CORE regulator is disabled.
When EN_DDR is set high, the two DDR regulators are dis-
abled to minimize overall system power dissipation when
memory is in standby mode. These two enable pins allow
power sequencing of the DDR and CORE regulator blocks
independently.
The CM3132 is available in a PSOP-8 package that has
excellent thermal dissipation. It is available with optional
lead-free finishing.
Typical Application Circuit
2.8V to 3.3V
VCC
CVCC
Enable DDR
Memory #
EN_DDR
Enable CORE#
EN_CORE
VREF
R
R
VDDQ
REGULATOR
VDDQ = 2.5V
VTT
REGULATOR
CDDQ
VREF=1.25V
VTT=1.25V
DDR
MEMORY
CTT
VREF
VCORE
REGULATOR
VCORE
R3
SENSE_CORE R4
CCORE
CPU
CORE
+ I/O
GND
Circuit Schematic
VCC
VREF
EN_DDR
R
R
VDDQ
REGULATOR
VDDQ
VTT
REGULATOR
VTT
EN_CORE
VREF
VCORE
REGULATOR
VCORE
GND
SENSE_CORE
© 2004 California Micro Devices Corp. All rights reserved.
10/13/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
1




 CM3132
PRELIMINARY
CM3132
www.DataSheet4U.com
Note: This drawing is not to scale.
PACKAGE / PINOUT DIAGRAM
TOP VIEW
VCORE
VCC
VDDQ
VTT
18
27
36
45
8-Lead PSOP
SENSE_CORE
GND
EN_CORE
EN_DDR
PSOP-8
LEAD
1
2
3
4
5
6
7
8
PAD
PIN DESCRIPTIONS
NAME
VCORE
VCC
VDDQ
VTT
EN_DDR
EN_CORE
GND
SENSE_CORE
GND
DESCRIPTION
VCORE output.
Input supply.
VDDQ output.
VTT output for termination resistors or VREF
Enable DDR power. Active low input.
Enable VCORE. Active low input.
Ground reference.
Sense input. Adjusts VCORE output voltage using external resistor divider. When tied to
GND, VCORE = 1.5V.
Tied to ground reference.
Ordering Information
PART NUMBERING INFORMATION
Leads
8
Package
PSOP-8
Standard Finish
Ordering Part
Number1
Part Marking
CM3132-02SB
CM3132 02SB
Lead-free Finish
Ordering Part
Number1
Part Marking
CM3132-02SH
CM3132 02SH
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
© 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 10/13/04




 CM3132
PRELIMINARY
CM3132
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
ESD (Human Body Model)
Pin Voltages
VCC
EN_CORE, EN_DDR, SENSE_CORE
www.DataSheet4U.cVoDmDQ, VTT
Storage Temperature Range
Operating Temperature Range
Ambient
Junction
RATING
±2000
[GND - 0.6] to [+6.5]
[GND - 0.6] to [VCC + 0.6]
[GND - 0.6] to [VCC + 0.6]
-40 to +150
0 to +85
0 to +125
UNITS
V
V
V
V
°C
°C
°C
STANDARD OPERATING CONDITIONS
PARAMETER
Ambient Operating Temperature Range
1. VDDQ Regulator
DDR-I Supply Voltage VCC
Load Current
CCC, CDDQ
2. VTT Regulator
DDR-I Supply Voltage VDDQ
DDR-I Load Current
CTT
3. VCORE Regulator
Core Supply Voltage VCC
DDR-I Load Current
CCORE
RATING
0 to +85
[VDDQ + 0.3] to 3.6
0 to 1500
10, 10
2.3 to 2.8
0 to ±500
47
[VDDQ or VCORE + 0.3] to 3.6
0 to 1500
10
UNITS
°C
V
mA
µF
V
mA
µF
V
mA
µF
© 2004 California Micro Devices Corp. All rights reserved.
10/13/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
3




Recommended third-party CM3132 Datasheet







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)