sc1146csw.tr Semtech Corporation, sc1146csw.tr Datasheet - Page 3

• Manufacturer Part Number: sc1146csw.tr
• Description: Vrm9.0 Programmable, Multi-phase, High Performance Pwm Controller
• Manufacturer: Semtech Corporation

July 25, 2000
ELECTRICAL CHARACTERISTICS (Cont.)
Unless otherwise noted: T
PARAMETER
Bgout Voltage
Bgout Impedance
External Clock Freq. Range
Oscillator Frequency
Internal Clock Freq. Range
Match DRV0-3
PWM Off Time
Overcurrent Comparator,
Comparator, Common Mode
Range
OC+I/P bias Current
OC-I/P bias Current
Input Offset Voltage
Feedback Input Impedance
Duty Cycle Range
CONVERTER SPECIFICATIONS, Reference Application Circuit
Output Accuracy Over Set
Range
Load Regulation
Line Regulation
POWER GOOD SIGNAL
Off Leakage Current
Power Good Max Sink Current
Power Good Threshold
Voltage Tolerance
Note:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
The SC1146 is patent pending
© 2000 SEMTECH CORP.
A
= 25 C, V
OCC_CMR
VOS_OCC
SYMBOL
P
P
IB_OC+
I
IB_OC-
leakage_Off
I
wrgood_T_Hi
Ri_FB
wrgood_T_lo
F
F
R
Sink_Max
V
F
V
Toff
V
V
ext_CK
int_CK
Bgout
V
O_Bg
OSC
D
CC5V
OUT
OUT
I
OUT
=
O
IN
D
= 5V, V
VRM9.0 PROGRAMMABLE, MULTI-PHASE,
HIGH PERFORMANCE PWM CONTROLLER
V
Vcc5v) I
CC2
IN
PWRGOOD = Logic High
V
= 4-6V, (V
Vout = 1.300V - 1.950V
Vout = 2.000V - 3.500V
Duty cycle (Avg) = 50%
= 5V, 4-Phase operation.
CC5V
VID 0-4 = 0000-1111
PWRGOOD< = .8V
CONDITIONS
O
I
Iref = 250µA
Vid = 00000
V
= 5V, V
V
O
V
= 5A , Clk = external
CC5V
O
Vin = 5V
Vin = 5V
Vin = 5V
O
= 3A - 20A
= 2.000V
= 2.00V
652 MITCHELL ROAD NEWBURY PARK CA 91320
IN
= 5.0V
separated from
O
= 2.000V
TBD
MIN
+75
+75
.80
7.6
.80
-1
-1
3
0
+ 100
+ 150
TYP
1.30
.025
8.0
8.0
8.0
.15
10
12
3
MAX UNITS
+250
+250
TBD
8.5
8.4
8.5
.05
+1
25
15
75
+1
2
2
SC1146
MHz
MHz
MHz
%/A
%/V
K
mV
mA
mV
mV
µ
µ
µA
%
%
%
%
V
V
3