EN5337QI
Electrical Characteristics
NOTE: VIN=5.5V over operating temperature range unless otherwise noted. Typical values are at TA = 25°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
Operating Input Voltage
VIN
2.375
5.5
V
Under Voltage Lock-out –
VIN Rising
Voltage above which UVLO is not
asserted
VUVLOR
VUVLOF
2.2
V
Under Voltage Lock-out –
VIN Falling
Voltage below which UVLO is
asserted
2.1
100
0.75
V
μA
V
Shut-Down Supply Current IS
ENABLE=0V
Feedback node voltage – factory
setting – TA = 25°C
Feedback Pin Voltage
VXFB
0.735
-5
0.765
5
Feedback pin Input
Leakage Current 1
IXFB
XFB pin input leakage current
nA
Line Regulation
2.375V ≤ VIN ≤ 5.5V
0A ≤ ILOAD ≤ 3A
0.02
-0.03
0.003
%/V
%/A
ΔVOUT_LINE
ΔVOUT_LOAD
Load Regulation
Temperature Regulation
ΔVOUT_TEMP -40°C ≤ TEMP ≤ 85°C
Measured from when VIN ≥ VUVLOR
ENABLE pin voltage crosses logic
%/°C
&
CSS X
67 kΩ
VOUT Rise Time
tRISE
high threshold. (4.7nF ≤ CSS ≤ 100nF)
Rise Time Accuracy 1
4.7nF ≤ CSS ≤ 100nF
-25
3
+25
%
ΔTRISE
Output Drop Out
Voltage
mV
VDO
RDO
VINMIN - VOUT at Full load
Input to Output Resistance
250
83
500
167
Resistance 1
mΩ
Maximum Continuous
Output Current
IOUT_Max_Cont
A
Over Current Trip Level
Disable Threshold
IOCP
4.5
A
V
VDISABLE
ENABLE pin logic low.
0.0
1.8
0.8
VIN
ENABLE pin logic high
2.375V ≤ VIN ≤ 5.5V
ENABLE Threshold
VENABLE
V
Time for device to re-enable after a
falling edge on ENABLE pin
ENABLE Lock-out time
TENLO
700
5
µS
μA
ENABLE pin Input Current1 IENABLE
70
ENABLE pin has ~80kΩ pull down
Switching Frequency (Free
Running)
Free Running frequency of
oscillator
FSW
MHz
External SYNC Clock
Frequency Lock Range
FPLL_LOCK
Range of SYNC clock frequency
SYNC Clock Logic Level
4.5
1.8
5.5
0.8
2.5
MHz
V
SYNC Input Threshold –
Low
VSYNC_LO
SYNC Input Threshold –
High
VSYNC_HI
POKTH
SYNC Clock Logic Level
V
Output voltage as a fraction of expected
output voltage
POK Threshold
90
%
POK Output Low Voltage
POK Output Hi Voltage
VPOKL
VPOKH
With 4mA current sink into POK
0.4
VIN
V
V
2.375V ≤ VIN ≤ 5.5V
POK pin VOH Leakage
Current1
IPOKL
POK high
1
µA
Note 1: Parameter guaranteed by design
©Enpirion 2009 all rights reserved, E&OE
4
www.enpirion.com
02638
6/18/2009
Rev:D
ENPIRION [ ENPIRION, INC. ]
