sc1155csw.tr Semtech Corporation, sc1155csw.tr Datasheet - Page 5

• Manufacturer Part Number: sc1155csw.tr
• Description: Programmable Synchronous Dc/dc Hysteretic Controller With Vrm 9.0 Vid Range
• Manufacturer: Semtech Corporation

PRELIMINARY - August 7, 2000
ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
PARAMETER
HYSTERETIC COMPARATOR
Input Offset Voltage
Input Bias Current
Hysteresis Accuracy
Hysteresis Setting
DROOP COMPENSATION
Initial Accuracy
OVERCURRENT PROTECTION
OCP Trip Point
Input Bias Current
HIGH-SIDE VDS SENSING
Gain
Initial Accuracy
IOUT Source
IOUT Sink Current
IOUT Voltage Swing
VIOUT Voltage Swing
VIOUT Voltage Swing
LOSENSE High Level Input Voltage
LOSENSE Low Level Input Voltage
Sample/Hold Resistance
BUFFERED REFERENCE
VREFB Load Regulation
DEADTIME CIRCUIT
LOHIB High Level Voltage
LOHIB Low Level Input Voltage
LOWDR High Level Input Voltage
LOWDR Low Level Input Voltage
© 2000 SEMTECH CORP.
J
< 125°C, VIN = 12V
Isource
Ibias
V
Vldreg
SYMBOL
Vos
Vih
Vil
V
V
Vih
V
Isink
V
Ibias
Vil
V
V
Vih
DROOP_ACC
Vil
IOUT(4,5V)
IOUT_ACC
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
WITH VRM 9.0 VID RANGE
HYS_ACC
HYS_SET
V
IOUT (IN)
IOUT(3V)
LOSENSE
R
LOSENSE
LOWDR
HYSCMP
LOWDR
LOHIB
OCP
HYSCMP
LOHIB
S/H
IOUT
OCP
REFB
IOUT
V
V
V
V
V
V
V
V
R
V
R
V
V
V
4.5V
10µA < I
(Note 1)
(Note 1)
DROOP
DROOP
HISENSE
IOUT
IOUTLO
IOUT
IOUTLO
HISENSE
HISENSE
HISENSE
HISENSE
HISENSE
IOUT
IOUT
= 0.5V, V
= 0.05V, V
= 10k0hm
= 10kOhm
pin grounded
= 11.5V
= 12V
= 50mV
= 13V
= 11V,
= 4.5V,
= 4.5V (Note 1)
= 12V, V
= 3V, R
= 4.5V (Note 1)
CONDITIONS
REFB
< 500µA
HISENSE
IOUT
HISENSE
IOUTLO
= 10kOhm
= 12V,
= 12V,
= 11.9V
MIN TYP MAX UNITS
0.09
2.85
500
40
50
0
0
0
2
2
0.1
50
65
2
2
0.11
3.75
100
2.0
1.0
1.8
1.0
1.0
60
80
5
1
7
5
6
SC1155
mV
mV
mV
mV
V/V
mV
mV
µA
nA
µA
µA
V
V
V
V
V
V
V
V
V
V
5