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LDO-512 Datasheet(PDF) 2 Page - STMicroelectronics

Part No. LDO-512
Description  Ultra Low Noise, High PSRR, Low Power, 30mA Very Low Dropout Voltage Regulators
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LDO-512 Datasheet(HTML) 2 Page - STMicroelectronics

   
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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.
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.
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Unit
Input Voltage Range (Note 1)
VIN
3
5.5
V
Output Voltage
VOUT
2.8
V
Output current
IOUT
30
mA
PMOS Output Resistance
RON
0.4
Input Current
IIN
200
600
nA
Dropout Voltage
∆V
DO
ILOAD = 30mA,
∆V
OUT = 50mV
30
mV
(Note 2)
170
Quiescent current
IQ
ILOAD = 100µA
100
150
µA
ILOAD = 30mA
150
280
Stand-by current
ISTDBY
ILOAD = 100µA
20
30
µA
Power down mode quiescent current
IPDN
Power down active
0.1
µA
Power Supply Rejection Ratio
PSRR
f < 100KHz
55
70
dB
Power Supply Rejection Ratio in
stand-by mode
PSRRSTY f < 100kHz
60
65
dB
Load Regulation
LDR
10
12
mV
Line Regulation
LIR
ILOAD = 30mA,
VIN = 3V to 5.1V,
VOUT = 2.8V
0.5
1
mV
Line Transcient
LIRT
VOUT = 2.8V,
IOUT = 30mA,
∆V
IN = 300mV
tRISE = tFALL = 10µs
0.5
1.5
mV
Load Transcient
LDTR
VOUT = 2.8V,
tRISE = tFALL = 10µs
100µA < ILOAD < 30mA
3mV
Recovery time
10
20
µs
Output Voltage Noise
en
100Hz < f
1KHz
30
70
1KHz < f
100KHz
20
35
f > 100KHz
20
30
Output Decoupling Capacitor
COUT
1µF
Settling Time (from power down to active
mode)
VOUT = 2.8V,
COUT = 1µF
20
50
µs
Short Circuit Current Limit
ISHORT
200
mA
nV
Hz
------------


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