SMM105
Preliminary Information
DC OPERATING CHARACTERISTICS (CONTINUED)
(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol
Parameter
Notes
Min.
Typ.
Max
Unit
VREF
V
REF_CNTL
1.25VREF Output Voltage
External V
REF
Voltage
Range
External VREF=1.25V, ±0.1%
ADOC
ACC
ADOC/Margin Accuracy
ADOC trimmed to internal VREF
-0.5
R
LOAD
= 2KΩ to GND
1.24
0.25
-0.2
1.25
1.26
VDD
V
V
%
%
±
0.1
±
0.3
+0.2
+0.5
AC OPERATING CHARACTERISTICS
(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol
Parameter
Notes
Min.
Typ.
Max
Unit
t
DC_CONTROl
T
settling
Active DC Control sampling period
Settling Time
Update period for Active
DC Control
+ 10% change in voltage
with 0.1% ripple
Fast Margin, nom to high,
TRIM_CAP=1µF
Slow Margin, nom to high,
TRIM_CAP=1µF
1.7
100
20
200
0.2
12.8
25.6
51.2
ms
ms
ms
ms
ms
ms
ms
ms
T
TRIM
Trim Speed
T
start
Programmable Start Time
ADOC/Margining Start
time delay after Start pin is
enabled
Summit Microelectronics, Inc
2068 1.8 09/20/05
6
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
