CM3131 Datasheet, PDF (2/10 Pages) California Micro Devices Corp – Triple Linear Voltage Regulator for DDR-I/-II Memory

CM3131
PACKAGE / PINOUT DIAGRAM
V DDQ
V TT
GND
TOP VIEW
CM3131-01/11
SEL/EN
PSOP-8
Note: These drawings are not to scale.
DRIVE
VSTBY
VCC
SENSE
NC
GND
SEL
NC
SENSE1
V_CC
EN
TOP VIEW
CM3131-02
PSOP-14
VTT
VDDQ1
VDDQ2
SENSE2
DRIVE2
DRIVE1
VSTBY
PART NUMBER
-01 -11 -02
1
1
13
2
2
14
1
3
3
2
4
3
4
4
7
5
5
5
6
6
6
7
7
8
8
8
9
10
11
12
PIN DESCRIPTIONS
NAME
VDDQ / VDDQ1
VTT
NC
GND
SEL
NC
EN
SENSE / SENSE1
VCC
VSTBY
DRIVE / DRIVE1
DRIVE2
SENSE2
VDDQ 2
DESCRIPTION
VDDQ input for VREF and VDDQ Output in Standby
VTT Output for termination resistors
No connection
Ground
Select Input, active low
No connection
Enable Input, active high
Sense Input, Adjusts VDDQ Rail
3.3V Main Input Supply
3.3V or 5V Standby Input Supply
Drive Output for VDDQ External n-FET
Drive Output for VDDQ External n-FET
Sense Input, Adjusts VDDQ Rail
VDDQ Input for VREF and VDDQ Output in Standby
Ordering Information
PART NUMBERING INFORMATION
STANDARD FINISH
LEAD-FREE FINISH
PINS
8
8
14
PACKAGE
PSOP-8
PSOP-8
PSOP-14
ORDERING PART
NUMBER¹
CM3131-01SB
CM3131-11SB
CM3131-02SB
PART
MARKETING
CM3131-01SB
CM3131-11SB
CM3131-02SB
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
ORDERING
PART NUMBER¹
CM3131-01SH
CM3131-11SH
CM3131-02SH
PART
MARKING
CM3131-01SH
CM3131-11SH
CM3131-02SH
© 2004 California Micro Devices Corp. All rights reserved.
02/02/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: [phone] Fax: [phone]
www.calmicro.com
2