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LM10502 データシート(PDF) 8 Page - Texas Instruments

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部品番号 LM10502
部品情報  Dual Buck LDO Power Management Unit
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM10502 データシート(HTML) 8 Page - Texas Instruments

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LM10502
SNVS884B – AUGUST 2012 – REVISED MAY 2013
www.ti.com
LDO Electrical Characteristics
(1) (2)
Unless otherwise noted, VIN = 5.0V where: VIN=VVIN = VVIN_LDO. C1 = 4.7µF,C6 = 2.2µF.
The application circuit used is the one shown in "Typical Application Circuit."
Limits in standard typeface are for TJ = 25°C.
Limits appearing in boldface type apply over the entire operating junction temperature range of
−30°C ≤ TA = TJ ≤ +85°C.
Ma
Uni
Symbol
Parameter
Conditions
Min Typ
x
ts
VOUT
Output Voltage Accuracy
IOUT = 1mA,VOUT = 3V
−3
+3
%
IOUT
Maximum Output Current
250
mA
0.5
ISC
Short Circuit Current Limit
Vout = 0V
(3), V
IN =3.3V
A
5
VDO
Dropout Voltage(4)
IOUT = 250mA
175 240
Line Regulation
3.3V
≤ VIN ≤ 5.5V, IOUT = 1mA
5
mV
ΔVOUT
Load Regulation
1mA
≤ IOUT ≤ 250 mA, VIN = 3.3V, 5.0V
5
VIN = 5.0V
10
µVR
eN
Output Noise Voltage(3)
10 Hz
≤ f ≤ 100 kHz
MS
VIN = 3.3V
35
VIN = 5.0V
65
dB
F = 10 kHz,
PSRR
Power Supply Rejection Ratio(3)
IOUT = 20 mA
VIN = 3.3V
40
VIN = 5.0V
45
µs
tSTARTUP
Startup Time from Shutdown(3)
IOUT = 250 mA
VIN = 3.3V
60
TTRANSIENT
Startup Transient Overshoot(3)
IOUT = 250 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 TJ = 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.
(4)
Dropout voltage is the difference between the input and output at which the output voltage drops to 100mV below its nominal value.
Comparators Electrical Characteristics
(1) (2)
Unless otherwise noted, VIN = 5.0V where: VIN=VVIN = VVIN_LDO.
The application circuit used is the one shown in "Typical Application Circuit."
Limits in standard typeface are for TJ = 25°C.
Limits appearing in boldface type apply over the entire operating junction temperature range of
−30°C ≤ TA = TJ ≤ +85°C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VCOMP = 0.0V
-2
0.1
IVCOMP
VCOMP pin bias current
µA
VCOMP = 5.0V
0.1
2
VCOMP input rising
VVCOMP_RISE
2.826
edge trigger level
V
VCOMP input falling
VVCOMP_FALL
2.768
edge trigger level
Hysteresis
30
60
80
mV
VOH
IRQ Output voltage high
@2mA
0.8*VIN_IO
V
VOL
IRQ Output voltage low
@2mA
0.2*VIN_IO
Transition time of
tCOMP
Interrupt to IRQ pin
6
15
µsec
output
(1)
All limits are ensured by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested
during production with TJ = 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.
8
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