Datasheet

LMR64010
SNVS736B –SEPTEMBER 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.
Parameter Test Conditions Min
(1)
Typ
(2)
Max
(1)
Units
V
IN
Input Voltage 2.7 14 V
I
SW
Switch Current Limit See
(3)
1.0 1.5 A
R
DS
(ON) Switch ON Resistance I
SW
= 100 mA 500 650 mΩ
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 Voltage V
IN
= 3V 1.205 1.230 1.255 V
I
FB
Feedback Pin Bias Current V
FB
= 1.23V 60 nA
I
Q
Quiescent Current V
SHDN
= 5V, Switching 2.1 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 1.15 1.6 1.85 MHz
D
MAX
Maximum Duty Cycle 87 93 %
I
L
Switch Leakage Not Switching V
SW
= 5V 1 µA
(1) Limits are ensuredd 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) Switch current limit is dependent on duty cycle (see Typical Performance Characteristics). Limits shown are for duty cycles ≤ 50%.
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