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SC486

Complete DDR1/2/3 Memory Power Supply

Semtech Corporation 

SC486

POWER MANAGEMENT

Absolute Maximum Ratings (10)

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters

specified in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may

affect device reliability.

Parameter

Symbol

Maximum

Units

TON to VSSA

-0.3 to +25.0

V

DH, BST to PGND1

-0.3 to +30.0

V

LX to PGND1

-2.0 to +25.0

V

DL, ILIM, VDDP to PGND1

-0.3 to +6.0

V

VDDP to DL

-0.3 to +6.0

V

VTTIN, VTT to PGND2

-0.3 to +6.0

V

VTTIN to VTT

-0.3 to +6.0

V

COMP, EN/PSV, FB, PGD, REF, VCCA, VDDQS, VTTEN,

VTTS TO VSSA

-0.3 to +6.0

V

VCCA to COMP, EN/PSV, FB, REF, VDDQS, VTT, VTTEN,

VTTIN, VTTS

-0.3 to +6.0

V

PGND1 to PGND2, PGND1 to VSSA

-0.3 to +0.3

V

BST, DH to LX

-0.3 to +6.0

V

Thermal Resistance Junction to Ambient

Operating Junction Temperature Range

Storage Temperature Range

Peak IR Reflow Temperature, 10s - 40s

θJA

29

°C/W

TJ

-40 to +150

°C

TSTG

-65 to +150

°C

TPKG

260

°C

Electrical Characteristics

Test Conditions: VBAT = 15V, VCCA = VDDP = VTTEN = EN/PSV = 5V, VDDQ = VTTIN = 1.8V, RTON = 1MΩ

Parameter

Conditions

25°C

Min Typ

Input Supplies

VCCA Operating Current

VCCA Operating Current, S3

FB > regulation point, IVDDQ = 0A

FB > regulation point, IVDDQ = 0A,

VTTEN = 0V

1500

1000

VDDP Operating Current

FB > regulation point, IVDDQ = 0A

70

TON Operating Current

RTON = 1MΩ

15

VTTIN Operating Current

IVTT = 0A

1

VCCA + VDDP + TON

Shutdown Current

EN/PSV = VTTEN = 0V

5

Max

-40°C to 125°C Units

Min Max

2500 µA

µA

150 µA

µA

5

µA

11 µA

 2006 Semtech Corp.

2

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