LDO_512 查看數據表（PDF） - STMicroelectronics
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LDO_512
STMicroelectronics
LDO_512 Datasheet PDF : 5 Pages
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LDO_512
ELECTRICAL CHARACTERISTICS
3V < VIN < 5.5V, -30°C < TA < +85°C, VREF = 2.8V, 0.8µF < COUT < 1.2µF, 20mΩ < ESR < 0.6Ω.
100µA < ILOAD < 30mA.
Typical case : VIN = 4V, T = 25°C, IOUT = 15mA.
Parameter
Symbol
Test Condition
Min. Typ. Max. Unit
Input Voltage Range (Note 1)
Output Voltage
Output current
PMOS Output Resistance
Input Current
Dropout Voltage
VIN
VOUT
IOUT
RON
IIN
∆VDO
ILOAD = 30mA,
∆VOUT = 50mV
(Note 2)
3
5.5
V
2.8
V
30
mA
0.4
Ω
200
600
nA
30
mV
170
Quiescent current
Stand-by current
Power down mode quiescent current
Power Supply Rejection Ratio
IQ
ISTDBY
IPDN
PSRR
ILOAD = 100µA
ILOAD = 30mA
ILOAD = 100µA
Power down active
f < 100KHz
100
150
µA
150
280
20
30
µA
0.1
µA
55
70
dB
Power Supply Rejection Ratio in
stand-by mode
PSRRSTY f < 100kHz
60
65
dB
Load Regulation
Line Regulation
Line Transcient
Load Transcient
LDR
LIR
LIRT
LDTR
ILOAD = 30mA,
VIN = 3V to 5.1V,
VOUT = 2.8V
VOUT = 2.8V,
IOUT = 30mA,
∆VIN = 300mV
tRISE = tFALL = 10µs
VOUT = 2.8V,
tRISE = tFALL = 10µs
100µA < ILOAD < 30mA
Recovery time
10
12
mV
0.5
1
mV
0.5
1.5
mV
3
mV
10
20
µs
Output Voltage Noise
en
100Hz < f ≤ 1KHz
1KHz < f ≤ 100KHz
f > 100KHz
30
70
20
35
--n----V-----
Hz
20
30
Output Decoupling Capacitor
Settling Time (from power down to active
mode)
Short Circuit Current Limit
COUT
ISHORT
VOUT = 2.8V,
COUT = 1µF
1
µF
20
50
µs
200
mA
Notes: 1. Above characteristics are given for 3V minimum input operating range voltage, but regulator is
operational with 2.7V minimum input voltage.
2. All parameters are guaranteed with 170mV Dropout voltage.
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