SC480 SEMTECH [Semtech Corporation], SC480 Datasheet - Page 4

• Manufacturer Part Number: SC480
• Description: Complete DDR1/2/3 Memory Power Supply
• Manufacturer: SEMTECH [Semtech Corporation]

TEST CONDITIONS: V
© 2006 Semtech Corp.
POWER MANAGEMENT
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Under-Voltage Fault Delay
Under-Voltage Blank Time
Output Over-Voltage Fault
Over-Voltage Fault Delay
PGD Low Output Voltage
PGD Leakage Current
PGD UV Threshold
PGD Fault Delay
VCCA Under-Voltage (UVLO)
VTT Fault Protection
UV Lower Threshold
OV Upper Threshold
Fault Shutdown Delay
Thermal Shutdown
Inputs/Outputs
Logic Input Low Voltage
Logic Input High Voltage
Logic Input High Voltage
EN/PSV Input Resistance
VTTEN Leakage Current
Soft-Start
VDDQ Soft-Start Ramp Time
VTT Soft-Start Ramp Rate
IN
= 15V, VCCA = VDDP = VTTEN = EN/PSV = 5V, VDDQ = VTTIN = 1.8V, R
(4)(5)
(6)
With Respect to FB Regulation Point
With Respect to FB Regulation Point
FB Above Over-Voltage Threshold
Falling Edge (Hysteresis 100 mV)
FB Forced Outside PGD Window
VTT Outside OV/UV Window
EN/PSV Low/Low (Disabled)
FB in Regulation, PGD = 5V
VTTEN Low (VTT Disabled)
VTTEN High (VTT Enabled)
(Enabled, Psave Disabled)
EN/PSV High to PGD High
(Enabled, Psave Enabled)
FB Forced Below UV V
EN/PSV High/High
EN/PSV Low/High
From EN High
VTT w/rt REF
VTT w/rt REF
Conditions
Sink 1mA
Sourcing
Sinking
4
TH
TON
= 1MΩ. T
Min
AMB
25°C
Typ
440
+16
+12
160
440
-10
-12
1.5
1.0
5.5
= -40 TO +85C.
50
8
5
5
4
Max
-40°C to 85°C
3.70
Min
+12
150
-12
-16
1.2
2.4
3.1
+8
-1
www.semtech.com
Max
4.35
+20
+16
170
0.1
1.2
0.6
2.4
+1
-8
-8
SC480
1
mV/μs
Units
clks
clks
clks
MΩ
MΩ
μs
μA
μs
μs
°C
μA
%
%
%
%
V
V
V
V
V
(3)
(3)
(3)