LM3241
SNOSB38B –JANUARY 2009–REVISED APRIL 2013
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ELECTRICAL CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
0.58
TYP
MAX
0.62
UNIT
Feedback voltage at minimum
VFB,MIN
setting
PWM mode, VCON = 0.24V
0.6
V
Feedback voltage at maximum
PWM mode, VCON = 1.36V, VIN
3.9V
=
VFB,MAX
setting
3.332
3.4
0.1
3.468
2
EN = SW = VCON = 0V
ISHDN
Shutdown supply current
µA
µA
(4)
PWM mode, No switching
VCON = 0V, FB = 1V
IQ_PWM
PWM mode Quiescent current
620
45
750
60
(5)
ECO mode, No switching
VCON = 0.8V, FB = 2.05V
IQ_ECO
ECO mode Quiescent current
(5)
VIN = VGS = 3.6V
ISW = 200 mA
RDSON (P)
RDSON (N)
Pin-pin resistance for PFET
Pin-pin resistance for NFET
160
110
250
200
mΩ
VIN = VGS = 3.6V
ISW = −200 mA
(6)
ILIM
PFET switch peak current limit
Internal oscillator frequency
EN Logic high input threshold
EN Logic low input threshold
VCON to VOUT gain
1300
5.7
1450
6
1600
6.3
mA
FOSC
VIH
MHz
1.2
V
VIL
0.4
±1
Gain
ICON
0.24V ≤ VCON ≤ 1.36V
2.5
V/V
µA
VCON pin leakage current
VCON = 1.0V
(1) All voltages are with respect to the potential at the GND pins.
(2) Min and Max limits are specified by design, test, or statistical analysis.
(3) The parameters in the electrical characteristics table are tested under open loop conditions at VIN = 3.6V unless otherwise
specified. For performance over the input voltage range and closed-loop results, refer to the datasheet curves.
(4) Shutdown current includes leakage current of PFET.
(5) IQ specified here is when the part is not switching under test mode conditions. For operating quiescent current at no load, refer to
datasheet curves.
(6) Current limit is built-in, fixed, and not adjustable.
4
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