BD3531F datasheet, PDF - EEWORLD Datasheet

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BD3531F: DescriptionTermination Regulators for DDR-SDRAMs; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size679KB，17 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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BD3531F Overview

Termination Regulators for DDR-SDRAMs

BD3531F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Differential output	NO
Interface integrated circuit type	BUS TERMINATOR SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e2
length	5 mm
Number of functions	1
Number of terminals	8
Maximum operating temperature	100 °C
Minimum operating temperature	-10 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.71 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
Temperature level	OTHER
Terminal surface	Tin/Copper (Sn/Cu)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	10
width	4.4 mm
Base Number Matches	1

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TECHNICAL NOTE

High-performance Regulator IC Series for PCs

Termination Regulators

for DDR-SDRAMs

BD3533F/FVM/EKN(1A),BD3531F(1.5A),BD3532F/EFV/KN(3A)

Description

BD3533/31/32 is a termination regulator compatible with JEDEC DDR-SDRAM, which functions as a linear power supply

incorporating an N-channel MOSFET and provides a sink/source current capability up to 1A, 1.5A, and 3A respectively. A

built-in high-speed OP-AMP specially designed offers an excellent transient response. Requires 3.3 volts or 5.0 volts as a

bias power supply to drive the N-channel MOSFET. Has an independent reference voltage input pin (VDDQ) and an

independent feedback pin (VTTS) to maintain the accuracy in voltage required by JEDEC, and offers an excellent output

voltage accuracy and load regulation. Also has a reference power supply output pin (VREF) for DDR-SDRAM or a

memory controller. When EN pin turns to “Low”, VTT output becomes “Hi-Z” while VREF output is kept unchanged,

compatible with “Self Refresh” state of DDR-SDRAM.

Features

1) Incorporates a push-pull power supply for termination (VTT)

2) Incorporates a reference voltage circuit (VREF)

3) Incorporates an enabler

4) Incorporates an undervoltage lockout (UVLO)

5). Employs SOP8 package

6) Employs MSOP8 package

7) Employs HQFN20V package

8) Employs HTSSOP-B20 package

9) Employs VQFN28V package

10) Incorporates a thermal shutdown protector (TSD)

11) Operates with input voltage from 2.7 to 5.5 volts

12) Compatible with Dual Channel (DDR-II)

Use

Power supply for DDR I/II - SDRAM

●Line

Parameter

Output Current

Vcc Range

Soft Start Function

Temperature

Package

BD3533F/FVM/EKN

±1.0A

2.7V½5.5V

○

-20½100℃

SOP8/MSOP8/HQFN20V

BD3531F

±1.5A

4.5V½5.5V

-10½100℃

SOP8

BD3532F/EFV/KN

±3Ａ

4.3½5.5V

○

-40½100℃

SOP8/HTSSOP-B20/VQFN28

Oct. 2008

BD3531F Related Products

	BD3531F	BD3532EFV	BD3532KN	KBU1007	BD3532F	BD3533EKN	KX2011D7032.768000	BD3533F_08
Description	Termination Regulators for DDR-SDRAMs	Termination Regulators for DDR-SDRAMs	Termination Regulators for DDR-SDRAMs	SINGLE PHASE 10.0 AMP BRIDGE RECTIFIERS	Termination Regulators for DDR-SDRAMs	Termination Regulators for DDR-SDRAMs	CMOS 32.768kHz	Termination Regulators for DDR-SDRAMs
Is it lead-free?	Lead free	Lead free	Lead free	-	Lead free	Lead free	-	-
Is it Rohs certified?	conform to	conform to	conform to	-	conform to	conform to	-	-
Parts packaging code	SOIC	TSSOP	QFN	-	SOIC	QFN	-	-
package instruction	SOP,	VSSOP,	VQCCN,	-	SOP,	ROHS COMPLIANT, HQFN-20	-	-
Contacts	8	20	28	-	8	20	-	-
Reach Compliance Code	compli	compli	compli	-	compli	compli	-	-
ECCN code	EAR99	EAR99	EAR99	-	EAR99	EAR99	-	-
Differential output	NO	NO	NO	-	NO	NO	-	-
Interface integrated circuit type	BUS TERMINATOR SUPPORT CIRCUIT	OTHER TERMINATOR	OTHER TERMINATOR	-	BUS TERMINATOR SUPPORT CIRCUIT	OTHER TERMINATOR	-	-
JESD-30 code	R-PDSO-G8	R-PDSO-G20	S-XQCC-N28	-	R-PDSO-G8	S-XQCC-N20	-	-
JESD-609 code	e2	e3/e2	e3/e2	-	e2	e3/e2	-	-
length	5 mm	6.5 mm	5.2 mm	-	5 mm	4.2 mm	-	-
Number of functions	1	1	1	-	1	1	-	-
Number of terminals	8	20	28	-	8	20	-	-
Maximum operating temperature	100 °C	100 °C	100 °C	-	100 °C	100 °C	-	-
Minimum operating temperature	-10 °C	-40 °C	-40 °C	-	-40 °C	-20 °C	-	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	UNSPECIFIED	-	PLASTIC/EPOXY	UNSPECIFIED	-	-
encapsulated code	SOP	VSSOP	VQCCN	-	SOP	HVQCCN	-	-
Package shape	RECTANGULAR	RECTANGULAR	SQUARE	-	RECTANGULAR	SQUARE	-	-
Package form	SMALL OUTLINE	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	CHIP CARRIER, VERY THIN PROFILE	-	SMALL OUTLINE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-	-
Peak Reflow Temperature (Celsius)	260	260	260	-	260	260	-	-
Certification status	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified	Not Qualified	-	-
Maximum seat height	1.71 mm	1 mm	0.95 mm	-	1.71 mm	0.95 mm	-	-
Maximum supply voltage	5.5 V	5.5 V	5.5 V	-	5.5 V	5.5 V	-	-
Minimum supply voltage	4.5 V	4.3 V	4.3 V	-	4.3 V	2.7 V	-	-
Nominal supply voltage	5 V	5 V	5 V	-	5 V	3.3 V	-	-
surface mount	YES	YES	YES	-	YES	YES	-	-
Temperature level	OTHER	INDUSTRIAL	INDUSTRIAL	-	INDUSTRIAL	OTHER	-	-
Terminal surface	Tin/Copper (Sn/Cu)	TIN/TIN COPPER	TIN/TIN COPPER	-	TIN COPPER	TIN/TIN COPPER	-	-
Terminal form	GULL WING	GULL WING	NO LEAD	-	GULL WING	NO LEAD	-	-
Terminal pitch	1.27 mm	0.65 mm	0.5 mm	-	1.27 mm	0.5 mm	-	-
Terminal location	DUAL	DUAL	QUAD	-	DUAL	QUAD	-	-
Maximum time at peak reflow temperature	10	10	10	-	10	10	-	-
width	4.4 mm	4.4 mm	5.2 mm	-	4.4 mm	4.2 mm	-	-

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