RT2519W
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Enable Voltage
2.2V VIN 6V,
OUT = 1k
VIH
VEN rising
1.2
--
--
Enable Threshold
Voltage
R
V
VIL
IIH
VEN falling, ROUT = 1k
VIN = 6V, VEN = 6V
--
--
--
--
0.4
1
Enable Input Current
0.02
0.02
A
A
Feedback Input Current IFB
VIN = 5.5V, VFB = 0.8V
1
Current Limit
Output Current Limit
ILIM
VIN = 3.3V, VOUT = 0.85 x VOUT
1.1
1.4
2
A
Power-Up Time
VOUT = 3.3V,
C
NR = 1nF
--
--
0.16
1.6
--
--
Power-Up Time
ROUT = 3.3k,
OUT = 4.7F
ms
CNR = 10nF
C
Dropout Voltage
VIN 2.2V,
--
--
--
--
--
--
160
210
370
I
OUT = 500mA
VOUT + 0.5V VIN 6V, VIN 2.5V,
FB = 0V OUT = 750mA
VIN 2.5V,
OUT = 1A
Dropout Voltage
VDROP
mV
V
I
I
Power Supply Ripple Rejection and Noise
f = 100Hz
f = 1kHz
f = 10kHz
f = 1MHz
--
--
--
--
48
63
63
38
--
--
--
--
Power Supply Ripple
Rejection
V
IN = 4.3V, VOUT = 3.3V,
PSRR
dB
I
OUT = 750mA
15.6 x
VOUT
C
NR = 1nF
--
--
--
--
--
--
BW = 100Hz to 100kHz,
VIN = 4.3V, VOUT = 3.3V, CNR = 10nF
OUT = 100mA
15.6 x
VOUT
Output Noise Voltage
VRMS
I
15.1 x
VOUT
CNR = 0.1F
Over-Temperature Protection
Thermal Shutdown
TSD
--
--
160
140
--
--
°C
Thermal Shutdown
Recovery
Copyright 2019 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS2519W-00 May 2019
www.richtek.com
5
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