CM3202-02 California Micro Devices Corporation, CM3202-02 Datasheet

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CM3202-02

Manufacturer Part Number
CM3202-02
Description
Ddr Vddq And Termination Voltage Regulator
Manufacturer
California Micro Devices Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CM3202-02DE
Manufacturer:
DIODES
Quantity:
39 400
Part Number:
CM3202-02SM
Manufacturer:
CMD - California Micro Devices
Quantity:
1 924
Features
Applications
© 2007 California Micro Devices Corp. All rights reserved.
05/25/07
Typical Application
220μF/
10V
V
TT
Two linear regulators
1.7V to 2.8V adjustable VDDQ output voltage
0.85V to 1.4V VTT output voltage (tracking at 50% of
VDDQ)
500mV typical VDDQ dropout voltage at 2A
Excellent load and line regulation, low noise
Meet JEDEC DDR-I and DDR-II memory power spec
Linear regulator design requires no inductors and has
low external component count
Integrated power MOSFETs
Dual purpose ADJ/Shutdown pin
Built-in over-current limit and thermal shutdown for V
and V
Fast transient response
Low quiescent current
TDFN-8 RoHS compliant lead-free package
SOIC-8 RoHS compliant lead-free package
DDR memory and active termination buses
Desktop computers, servers
Residential and enterprise gateways
DSL modems
Routers and switches
DVD recorders
3D AGP cards
LCD TV and STB
= 1.25V/2A
V
IN
-Maximum 2A current from VDDQ
-Source and sink up to 2A VTT current
= 3.0V to 3.6V
TT
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
C
TT
4.7μF/
DDR VDDQ and VTT Termination Voltage Regulator
10V
cer
220μF/ /
10V
1
2
3
4
C
VIN
NC
VTT
NC
IN
CM3202-02
4.7μF/10V
cer
ADJSD
VDDQ
GND
GND
VTT
8
7
6
5
220μF/
10V
S/D
DDQ
C
DDQ
Tel: 408.263.3214
R1
10k
10k
R2
V
DDQ
4.7μF/10V, cer
Product Description
T
regulator designed to meet SSTL-2 and SSTL-3
specifications for DDR-SDRAM V
termination voltage V
MOSFETs the CM3202-02 can source up to 2A of
VDDQ continuous current, and source or sink up to 2A
VTT continuous current. The typical dropout voltage for
VDDQ is 500mV at 2A load current.
The CM3202-02 provides excellent full load regulation
and fast response to transient load changes. It also has
built-in over-current limits and thermal shutdown at
170°C.
The CM3202-02 supports Suspend-To-RAM (STR)
and ACPI compliance with Shutdown Mode which tri-
states VTT to minimize quiescent system current.
The CM3202-02 is available in a space saving TDFN-8
and SOIC-8 surface mount packages. Low thermal
resistance allows them to withstand high power
dissipation at 85°C ambient. The CM3202-02 can
operate over the industrial ambient temperature range
of –40°C to 85°C.
= 2.5V/2A
he CM3202-02 is a dual-output low noise linear
1. 25V , 2.5A
C hip
S et
51
R
f
Fax: 408.263.7846
VDDQ
DL0
DLn
TT
RTn
V
supply. With integrated power
REF
RT0
PRELIMINARY
CM3202-02
DDQ
www.cmd.com
VDDQ
REF
1μF/10V
supply and
C
cer
f
Memory
D D R
1

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CM3202-02 Summary of contents

Page 1

... The CM3202-02 supports Suspend-To-RAM (STR) and ACPI compliance with Shutdown Mode which tri- states VTT to minimize quiescent system current. The CM3202-02 is available in a space saving TDFN-8 and SOIC-8 surface mount packages. Low thermal resistance allows them to withstand high power dissipation at 85°C ambient. The CM3202-02 can operate over the industrial ambient temperature range of – ...

Page 2

... The backside exposed pad which serves as the package heatsink. Must be connected to GND. ● ● Tel: 408.263.3214 PRELIMINARY CM3202-02 Top View (Pins Down View VDDQ 2 7 VDDQ 3 6 ADJSD 4 5 GND 8-Lead SOIC Package CM3202-02SM . DDQ is DDQ output DDQ ● Fax: 408.263.7846 www.cmd.com 05/25/07 ...

Page 3

... PART NUMBERING INFORMATION Package Ordering Part Number TDFN CM3202-02DE SOIC CM3202-02SM ABSOLUTE MAXIMUM RATINGS layers PCB with thermal vias. ● Tel: 408.263.3214 PRELIMINARY CM3202-02 Lead-free Finish 1 Part Marking CM320 202DE CM3202 02SM RATING [GND - 0.3] to +6.0 [GND - 0.3] to +6.0 [GND - 0.3] to +6.0 2.0 / ± 2.0 2.8 / ± 2.8 3 –40 to +85 – ...

Page 4

... Hysteresis = 100mV (3) ( OUT I = 100mA DDQ (4) 10mA ≤ I ≤ 2A DDQ 3.0V ≤ VIN ≤ 3.6V 0.1A DDQ ( DDQ (3) ● ● Tel: 408.263.3214 Fax: 408.263.7846 PRELIMINARY CM3202-02 RATING UNITS ° 2.5 A μF 220 ±2.0 A ±2.50 A μF 220 V 2.5 A 3.5 A °C MIN TYP ...

Page 5

... T = 25°C unless otherwise specified. DDQ TT A Current Limit Vref1 Vref Current Limit Current Limit ● ● Tel: 408.263.3214 Fax: 408.263.7846 PRELIMINARY CM3202-02 (SEE NOTE 1) MIN TYP MAX UNITS 1.225 1.250 1.275 –30 – ±2.0 ± ...

Page 6

... VIN i =3.3V = 100 3.0 4.0 VIN i =3.3V Vin 2V/div VDDQ 1V/div VTT 1V/div ● Tel: 408.263.3214 PRELIMINARY CM3202-02 VDDQ vs. Temperature VIN =3.3V I =10mA O -40 - 100 120 140 o TEMPERATURE ( C ) VDDQ Dropout vs. IDDQ T = 25° 0.5 1.0 1.5 2.0 IDDQ (A) ...

Page 7

... V DDQ 0.1V/div TIME (0.2ms/div) © 2007 California Micro Devices Corp. All rights reserved. 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 05/25/07 VTT Transient Response 0.5A/div -0.75A V TT 0.1V/div ● ● Tel: 408.263.3214 PRELIMINARY CM3202- 3.3V +0.75A IN TIME (0.2ms/div) ● Fax: 408.263.7846 www.cmd.com 7 ...

Page 8

... DDR SDRAM. 1 typical CM3202-02 Regulator supply DDQ The CM3202-02 dual output linear regulator provides all of the power requirements of DDR memory half of TT combining two linear regulators into a single TDFN-8 package. VDDQ regulator can supply current, ...

Page 9

... ADJ and GND, DDQ pin’s normal operation. When the diode anode is pulled low, or left open, the CM3202-02 is again enabled. Current Limit and Over-temperature Protection The CM3202-02 features internal current limiting with thermal protection. During normal operation, V limits the output current to approximately 2A and V limits the output current to approximately ± ...

Page 10

... California Micro Devices Corp. All rights reserved. 10 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 PCB Layout Considerations The CM3202-02 has a heat spreader (exposed pad) attached to the bottom of the TDFN-8 package in order ) primarily D for the heat to be transferred more easily from the package to the PCB ...

Page 11

... Mechanical Details TDFN-08 Mechanical Specifications The CM3202-02DE is supplied in an 8-lead, 0.65mm pitch TDFN package. Dimensions are presented below. PACKAGE DIMENSIONS Package TDFN JEDEC MO-229 (Var. WEEC-1) No. Leads 6 Millimeters Dim. Min Nom Max A 0.70 0.75 0.80 A1 0.00 0.02 0.05 A2 0.45 0.55 0.65 A3 0.20 REF b 0.25 0.30 0.35 D 2.90 3.00 3.10 D2 2.20 2.30 2.40 E 2.90 3.00 3.10 E2 1.40 1.50 1.60 e 0.65 BSC K 0.20 L 0.20 0.30 0.40 # per ...

Page 12

... Mechanical Details (cont’d) SOIC-8 Mechanical Specifications The CM3202-02SM is supplied in an 8-pin SOIC package. Dimensions are presented below. For complete information on the SOIC-8, see the California Micro Devices SOIC Package Information document. PACKAGE DIMENSIONS Package SOIC Pins Millimeters Dimensions Min Max A 1 ...

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