Rev 1.0 – July 2005
25°C.
EN5330
PARAMETER
Operating Input
Voltage
Quiescent Supply
Current
No-Load Operating
Current
Switching
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
VIN
2.375
5.5
V
mA
mA
MHz
°C
No switching, AVIN = 3.3V,
PVIN = 3.3V, ENABLE=0V
Includes PWM, gate drive and
inductor ripple current.
IQ
INL
FOSC
TJ
15
45
5
Frequency
Thermal Overload
Trip Point
160
VOUT
Range
Accuracy
Line Regulation
Load Regulation
VOUT
VOUT
∆VOUT
∆VOUT
Using external voltage divider
Over line, load and temperature
VIN = 2.5 to 5.0 volts
0.8
V
%
mV
mV
±2.0
3
3
ILOAD = 0 to 3A
+0.25
-0.45
+0.65
-0.55
TA= 0 to 70ºC
%
%
∆VOUT
Temperature
Regulation
TA= -40 to 85ºC
∆VOUT
Transient Response (IOUT = 0% to 100% or 100% to 0% of Rated Load)
Peak Deviation VOUT VIN = 5V, 1.2V < VOUT < 3.3V
Output Voltage Ripple (with 5 x 10µF X5R or X7R ceramic capacitors)
3
5
3
%
VIN = 5.0V, VOUT = 1.2V, IOUT = 3A,
Peak-to-peak
VOUT-PP
COUT = 50uF, 5 x 10µF X5R or X7R
ceramic capacitors
20
mV
Output Current (Note 4)
Max Continuous
Output Current
Over-Current
Threshold
Short-Circuit
IOUT
IOCP
ISC
A
A
A
4.5
4
Current
Enable Operation
Max voltage to ensure the converter
is disabled
Min voltage to ensure the converter
is enabled
Disable Threshold
Enable Threshold
VDISABLE
VENABLE
0.8
V
V
1.8
Power OK Operation
POK low voltage
Max POK Voltage
NOTES:
VPOK
VPOK
IPOK = 1mA
Supply voltage applied to POK
0.4
5.5
V
V
4. Maximum output current may need to be de-rated, based on operating condition, to meet TJ requirements.
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