sc1464cms.tr Semtech Corporation, sc1464cms.tr Datasheet - Page 3

• Manufacturer Part Number: sc1464cms.tr
• Description: 60ma Programmable Fixed Frequency Charge Pump Doubler
• Manufacturer: Semtech Corporation

PRELIMINARY - August 11, 2000
ELECTRICAL CHARACTERISTICS
Unless specified, T
Parameter
Time to Regulation at
Turn-on
Input High Threshold
Input Low Threshold
Inrush Current
Over Temperature
protection
Over Temperature
Hysteresis
NOTES:
(1) All electrical characteristics are for the application circuit on page 2.
(2) Soft start functionality is performed along with short circuit protection. If V
switches are turned off and V
then a current limit version of the switches are turned on until V
all switches are enabled.
(3) Guaranteed by design.
© 2000 SEMTECH CORP.
(2)(3)
(3)
(3)
(3)
A
= -40° C to 85° C, EN = V
OUT
Symbol
O.T.H
I
INRUSH
O.T.
t
V
V
is charged with a 70mA current source from V
ON
ih
il
IN
, C
Bucket
60mA PROGRAMMABLE FIXED
FREQUENCY CHARGE PUMP DOUBLER
= 2.2µF(ESR = 0.1τ), C
Upon application of V
average current over 10 periods
Test Conditions
I
O
freq = 260kHz
All input pins
All input pins
= 0 to 60 mA
652 MITCHELL ROAD NEWBURY PARK CA 91320
OUT
IN
, C
IN
reaches V
OUT
, Maximum
= 3.3µF(ESR = 1τ), V
IN
OUT
+ a PMOS threshold, at which point
IN
. When V
is less than V
MIN
1.3
IN
OUT
= 3V±5%, V
reaches V
IN
TYP
420
170
10
- 200mV, then all
OUT
MAX Units
1000
= 5.2V to 6.2V.
750
0.4
IN
SC1464
- 200mV,
mA
µs
°C
°C
V
V
3