Datasheet
LMR10530
SNVS814A –JUNE 2012–REVISED APRIL 2013
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Electrical Characteristics
Unless otherwise specified under the Conditions column, V
IN
= 5V. Limits in standard type are for T
J
= 25°C only; limits in
boldface type apply over the junction temperature (T
J
) range of -40°C to +125°C. Minimum and Maximum limits are ensured
through test, design, or statistical correlation. Typical values represent the most likely parametric norm, and are provided for
reference purposes only.
Symbol Parameter Conditions Min Typ Max Units
V
FB
Feedback Voltage WSON-10 Package 0.588 0.600 0.612 V
ΔV
FB
/(ΔV
IN
xV
FB
) Feedback Voltage Line Regulation V
IN
= 3V to 5.5V 0.08 %/V
I
B
Feedback Input Bias Current 0.1 100 nA
V
IN
Rising 2.70 2.90
Undervoltage Lockout V
UVLO V
IN
Falling 1.85 2.35
UVLO Hysteresis 0.35 V
LMR10530X 1.1 1.5 1.95
f
SW
Switching Frequency MHz
LMR10530Y 2.25 3.0 3.75
LMR10530X 86 95
D
MAX
Maximum Duty Cycle %
LMR10530Y 80 90
LMR10530X 5
D
MIN
Minimum Duty Cycle %
LMR10530Y 7
R
DS(ON)
Switch On Resistance 58 90 mΩ
I
CL
Switch Current Limit 3.4 4.4 A
Enable Threshold Voltage 1.8
V
EN_TH
V
Shutdown Threshold Voltage 0.4
I
SW
Switch Leakage 100 nA
I
EN
Enable Pin Current Sink/Source 100 nA
LMR10530X, V
FB
= 0.55 3.2 5
Quiescent Current (switching) mA
I
Q
LMR10530Y, V
FB
= 0.55 4.3 6.5
Quiescent Current (shutdown) All Options V
EN
= 0V 300 nA
V
FB_F
FB Frequency Foldback Threshold All Options 0.32 V
LMR10530X, V
FB
= 0V 400
f
FB
Foldback Frequency kHz
LMR10530Y, V
FB
= 0V 800
Junction to Ambient
θ
JA
53 °C/W
0 LFPM Air Flow
(1)
θ
JC
Junction to Case
(1)
12 °C/W
T
SD
Thermal Shutdown Threshold
(2)
Junction Temperature
165 °C
Rising
T
SD_HYS
Thermal Shutdown Hysteresis Junction Temperature
15 °C
Falling
(1) Applies for packages soldered directly onto a 4” x 3” 4-layer standard JEDEC board in still air.
(2) Thermal shutdown will occur if the junction temperature exceeds the maximum junction temperature of the device.
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