Datasheet

LM10506
SNVS729E –SEPTEMBER 2011–REVISED MARCH 2013 www.ti.com
Buck 3 Electrical Characteristics
(1)(2)(3)
(continued)
Unless otherwise noted, V
IN
= 5.0V where: V
IN
= V
IN_B1
= V
IN_B2
= V
IN_B3
. Limits appearing in normal type apply for T
J
= 25°C.
Limits appearing in boldface type apply over the entire operating junction temperature range of −40°C ≤ T
A
= T
J
≤ +85°C.
Symbol Parameter Conditions Min Typ Max Units
135
R
DS-ON-HS
High Side Switch On Resistance
V
IN
= 2.6V 260 mΩ
R
DS-ON-LS
Low Side Switch On Resistance 85 190
STARTUP
Startup from shutdown, V
OUT
= 0V, no
load, LC = recommended circuit, using
T
START
Internal soft-start (turn on time)
(4)
0.1 ms
software enable, to V
OUT
= 95% of final
value
LDO Electrical Characteristics
(1)(2)
Unless otherwise noted, V
IN
= 5.0V where: V
IN
= V
IN_B1
= V
IN_B2
= V
IN_B3
. Limits appearing in normal type apply for T
J
= 25°C.
Limits appearing in boldface type apply over the entire operating junction temperature range of −40°C ≤ T
A
= T
J
≤ +85°C.
Symbol Parameter Conditions Min Typ Max Units
V
OUT
Output Voltage Accuracy I
OUT
= 1mA −3 +3 %
V
OUT
= 0V 0.3
I
SC
Short-Circuit Current Limit A
V
IN
= 3.3V,V
OUT
= 0V
(3)
0.5
V
DO
Dropout Voltage I
OUT
= 100 mA 60 100
Line Regulation 3.3V ≤ V
IN
≤ 5.5V, I
OUT
= 1mA 5 mV
ΔV
OUT
Load Regulation 1mA ≤ I
OUT
≤ 100 mA, V
IN
= 3.3V, 5.0V 5
V
IN
= 5.0V 10
Output Noise Voltage
e
N
10 Hz ≤ f ≤ 100 kHz µV
RMS
(3)
V
IN
= 3.3V 35
V
IN
= 5.0V 65 dB
F = 10 kHz, C
OUT
= 4.7 µF,
PSRR Power Supply Rejection Ratio
(3)
I
OUT
= 20 mA
V
IN
= 3.3V 40
V
IN
= 5.0V 45 µs
C
OUT
= 4.7 µF I
OUT
= 100
t
STARTUP
Startup Time from Shutdown
(3)
mA
V
IN
= 3.3V 60
T
TRANSIENT
Startup Transient Overshoot
(3)
C
OUT
= 4.7 µF I
OUT
= 100 mA 30 mV
(1) All limits are ensured by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested
during production with T
J
= 25°C. All hot and cold limits are ensured by correlating the electrical characteristics to process and
temperature variations and applying statistical process control.
(2) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.
(3) Specification ensured by design. Not tested during production.
Comparators Electrical Characteristics
(1) (2)
Unless otherwise noted, V
IN
= 5.0V where: V
IN
= V
IN_B1
= V
IN_B2
= V
IN_B3
. Limits appearing in normal type apply for T
J
= 25°C.
Limits appearing in boldface type apply over the entire operating junction temperature range of −40°C ≤ T
A
= T
J
≤ +85°C.
Symbol Parameter Conditions Min Typ Max Units
V
COMP
= 0.0V 0.1 2
I
VCOMP
VCOMP pin bias current µA
V
COMP
= 5.0V 0.1 2
V
COMP_RISE
Comparator rising edge trigger level 2.826
V
V
COMP_FALL
Comparator falling edge trigger level 2.768
Hysteresis 30 60 80 mV
IRQ
VOH
Output voltage high 0.8*VIN_IO
V
IRQ
VOL
Output voltage low 0.2*VIN_IO
t
COMP
Transition time of IRQ output 6 15 µsec
(1) All limits are ensured by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested
during production with T
J
= 25°C. All hot and cold limits are ensured by correlating the electrical characteristics to process and
temperature variations and applying statistical process control.
(2) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.
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