SC1158 Datasheet, PDF (2/5 Pages) Semtech Corporation – PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS

PROGRAMMABLE SYNCHRONOUS DC/DC
SC1158
CONTROLLER FOR ADVANCED PROCESSORS
Preliminary - August 7, 2000
ABSOLUTE MAXIMUM RATINGS
Parameter
V_CC to GND
PGND to GND
BST to GND
Thermal Resistance Junction to Case
Thermal Resistance Junction to Ambient
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec
ESD Rating (Human Body Model)
Symbol
V_IN
θ_JC
θ_JA
T_A
T_STG
T_LEAD
ESD
Maximum
-0.3 to 7
±1
-0.3 to 15
30
130
0 to 70
-65 to +150
300
1.5
Units
V
V
V
°C/W
°C/W
°C
°C
°C
kV
ELECTRICAL CHARACTERISTICS
Unless specified: V_CC = 4.75V to 5.25V; GND = PGND = 0V; FB = V_O; 0mV < (CS(+) - CS(-)) < 60mV; T_J = 25^oC
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Output Voltage
See Table 1.
Supply Voltage
Supply Current
Load Regulation
Line Regulation
V_CC
V_CC = 5.0
I_O = 0.3A to 15A⁽¹⁾
All VID codes⁽¹⁾
4.5
7
V
8
15
mA
1
%
+0.15
%
Gain (A_OL)
Current Limit Voltage
V_OSENSE to V_O
35
dB
60
70
80
mV
Oscillator Frequency
125
140
155
kHz
Buffered Reference Voltage I_REF ≤=1mA
Oscillator Max Duty Cycle
1.25
V
90
95
%
DH Sink/Source Current
BST_H - DH = 4.5V, DH - PGND_H = 3V
1
A
DL Sink/Source Current
BST_L - DL = 4.5V, DL - PGND_L = 3V
1
A
Dead Time
50
100
ns
VID Pin Source current
VIDx < 2.4V
30
100
uA
NOTE:
(1) Specification refers to application circuit (Figure 1.).
(2) This device is ESD sensitive. Use of standard ESD handling precautions is required.
© 2000 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320