Datasheet

LMR62014
SNVS735B –OCTOBER 2011–REVISED APRIL 2013 www.ti.com
Electrical Characteristics
Limits in standard typeface are for T
J
= 25°C, and limits in boldface type apply over the full operating temperature range
(−40°C ≤ T
J
≤ +125°C). Unless otherwise specified: V
IN
= 5V, V
SHDN
= 5V, I
L
= 0A.
Symbol Parameter Conditions Min
(1)
Typical
(2)
Max
(1)
Units
V
IN
Input Voltage 2.7 14 V
V
OUT (MIN)
Minimum Output Voltage R
L
= 43Ω
(3)
V
IN
= 2.7V 5.4 7 V
Under Load
V
IN
= 3.3V 8 10
V
IN
= 5V 13 17
R
L
= 15Ω
(3)
V
IN
= 2.7V 3.75 5
V
IN
= 3.3V 5 6.5
V
IN
= 5V 8.75 11
I
SW
Switch Current Limit See
(4)
1.8 2 A
1.4
R
DS
(ON) Switch ON Resistance I
SW
= 100 mA, Vin = 5V 260 400 mΩ
500
I
SW
= 100 mA, Vin = 3.3V 300 450
550
SHDN
TH
Shutdown Threshold Device ON 1.5
V
Device OFF 0.50
I
SHDN
Shutdown Pin Bias Current V
SHDN
= 0 0
µA
V
SHDN
= 5V 0 2
V
FB
Feedback Pin Reference V
IN
= 3V
1.205 1.230 1.255 V
Voltage
I
FB
Feedback Pin Bias Current V
FB
= 1.23V 60 500 nA
I
Q
Quiescent Current V
SHDN
= 5V, Switching 2 3.0 mA
V
SHDN
= 5V, Not Switching 400 500
µA
V
SHDN
= 0 0.024 1
ΔV
FB
FB Voltage Line Regulation 2.7V ≤ V
IN
≤ 14V
0.02 %/V
ΔV
IN
F
SW
Switching Frequency
(5)
1 1.6 1.85 MHz
D
MAX
Maximum Duty Cycle
(5)
86 93 %
I
L
Switch Leakage Not Switching V
SW
= 5V 1 µA
(1) Limits are ensured by testing, statistical correlation, or design.
(2) Typical values are derived from the mean value of a large quantity of samples tested during characterization and represent the most
likely expected value of the parameter at room temperature.
(3) L = 10 µH, C
OUT
= 4.7 µF, duty cycle = maximum
(4) Switch current limit is dependent on duty cycle (see Typical Performance Characteristics).
(5) Specified limits are the same for Vin = 3.3V input.
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