sc1154 Semtech Corporation, sc1154 Datasheet - Page 4

• Manufacturer Part Number: sc1154
• Description: Programmable Synchronous Dc/dc Hysteretic Controller For Advanced Processors
• Manufacturer: Semtech Corporation

ELECTRICAL CHARACTERISTICS
PRELIMINARY - March 1, 2000
Unless specified: 0 < T
PARAMETER
Supply Voltage Range
Supply Current (Quiescent)
High Side Driver Supply
Current (Quiescent)
REFERENCE/VOLTAGE IDENTIFICATION
Reference Voltage Accuracy
VID0 - VID4 High Threshold
Voltage
VID0 - VID4 Low Threshold
Voltage
POWER GOOD
Undervoltage Threshold
Output Saturation Voltage
Hysteresis
OVER VOLTAGE PROTECTION
OVP Trip Point
Hysteresis
© 2000 SEMTECH CORP.
(1)
J
< 125°C, VIN = 12V
V
SYMBOL
V
V
VIN12V
HYS(PWRGD)
TH(PWRGD)
I
V
V
HYS(OVP)
BOOT
V
V
V
I
TH(H)
TH(L)
IN
OVP
REF
SAT
q
q
INH = 5V, VID not 11111,
VIN above UVLO threshold during start-up,
f
C
INH = 0V or VID = 11111 or VIN below
UVLO threshold during start-up,
BOOT = 13V, BOOTLO = 0V
INH = 5V, VID not 11111, VIN
f
C
11.4V < VIN12V < 12.6V, over full VID
range (see Output Voltage Table)
I
above UVLO threshold during start-up,
O
SW
SW
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
FOR ADVANCED PROCESSORS
DH
DH
= 5mA
= 200kHz, BOOTLO = 0V,
= 200kHz, BOOT = 13V, BOOTLO = 0V,
= C
= 50pF
DL
= 50pF
CONDITIONS
652 MITCHELL ROAD NEWBURY PARK CA 91320
MIN TYP MAX UNITS
11.4
2.25
90
12
-1
0.5
12
15
10
15
10
5
13
10
95
20
1
1
SC1154
% V
%V
mA
mA
mV
mV
µA
%
V
V
V
V
REF
REF
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