Datasheet

LM2830
SNVS454D –AUGUST 2006–REVISED APRIL 2013 www.ti.com
Electrical Characteristics
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 WSON and SOT-23 Package 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
LM2830-X 1.2 1.6 1.95
F
SW
Switching Frequency MHz
LM2830-Z 2.25 3.0 3.75
LM2830-X 86 94
D
MAX
Maximum Duty Cycle %
LM2830-Z 82 90
LM2830-X 5
D
MIN
Minimum Duty Cycle %
LM2830-Z 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 1.2 1.75 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
LM2830X V
FB
= 0.55 3.3 5 mA
Quiescent Current (switching)
I
Q
LM2830Z V
FB
= 0.55 4.3 6.5 mA
Quiescent Current (shutdown) All Options V
EN
= 0V 30 nA
WSON Package 80
Junction to Ambient
θ
JA
°C/W
0 LFPM Air Flow
(1)
SOT-23 Package 118
WSON Package 18
θ
JC
Junction to Case
(1)
°C/W
SOT-23 Package 80
T
SD
Thermal Shutdown Temperature 165 °C
(1) 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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