Datasheet
LMR10515
SNVS728C –OCTOBER 2011–REVISED APRIL 2013
www.ti.com
Electrical Characteristics
(1)(2)
VIN = 5V unless otherwise indicated under the Conditions column. 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 at T
J
= 25°C, and are
provided for reference purposes only.
Symbol Parameter Conditions Min Typ Max Units
V
FB
Feedback Voltage 0.588 0.600 0.612 V
ΔV
FB
/V
IN
Feedback Voltage Line Regulation V
IN
= 3V to 5V 0.02 %/V
I
B
Feedback Input Bias Current 0.1 100 nA
V
IN
Rising 2.73 2.90 V
Undervoltage Lockout
UVLO V
IN
Falling 1.85 2.3
UVLO Hysteresis 0.43 V
LMR10515-X 1.2 1.6 1.95
F
SW
Switching Frequency MHz
LMR10515-Y 2.25 3.0 3.75
LMR10515-X 86 94
D
MAX
Maximum Duty Cycle %
LMR10515-Y 82 90
LMR10515-X 5
D
MIN
Minimum Duty Cycle %
LMR10515-Y 7
WSON Package 150
R
DS(ON)
Switch On Resistance mΩ
SOT-23 Package 130 195
I
CL
Switch Current Limit V
IN
= 3.3V 1.8 2.5 A
Shutdown Threshold Voltage 0.4
V
EN_TH
V
Enable Threshold Voltage 1.8
I
SW
Switch Leakage 100 nA
I
EN
Enable Pin Current Sink/Source 100 nA
LMR10515X V
FB
= 0.55 3.3 5 mA
Quiescent Current (switching)
I
Q
LMR10515Y V
FB
= 0.55 4.3 6.5
Quiescent Current (shutdown) All Options V
EN
= 0V 30 nA
WSON Package 80
Junction to Ambient
θ
JA
°C/W
0 LFPM Air Flow
(3)
SOT-23 Package 118
WSON Package 18
θ
JC
Junction to Case °C/W
SOT-23 Package 80
T
SD
Thermal Shutdown Temperature 165 °C
(1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate TI's Average Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely parametric norm.
(3) Applies for packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air.
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