RT5090E
Parameter
BUCK2
Supply Voltage
Supply Voltage
Supply Current
Shutdown Supply Current
Quiescent Supply Current
Reference and Soft-Start
Output Voltage Scaling
Output Voltage
DC Output Voltage
Programmable step
Soft-Star Time
R
DS(ON)
Switch On Resistance
Switch On Resistance
Current Limit
Current Limit
DVS Step
Switching Frequency and Minimum Off Timer
Switching Frequency
Minimum Off-Time
Protections
OVP Trip Threshold
OVP Timer Latch
UVP Trip Threshold
UVP Timer Latch
Regulation
Line Regulation
Load Regulation
Discharge Resistor
Discharge Resistance
R
DISCHG
--
10
--
CCM
--
--
0.5
0.5
--
--
%
%
V
OVP_TH
t
OVPDLY
V
UVP_TH
t
UVPDLY
--
--
--
--
120
10
60
10
--
--
--
--
%
s
%
s
f
SW
t
OFF
--
--
1.5
120
--
--
MHz
ns
I
OC
Valley current sense
--
--
4.5
10
--
--
A
mV/s
R
DS(ON)_H
R
DS(ON)_L
V
IN2
= 5V
V
IN2
= 5V
--
--
70
55
--
--
m
m
V
OUT2
V
OUT2
V
STEP
t
SS
V
OUT2
soft-start time
Controlled by I
2
C
0x04[6:0]
0x04[6:0] = 32h, CCM
0.7
1.188
--
--
--
1.2
10
1
1.5
1.212
--
--
V
V
mV
ms
V
EN
= 0V
Enable, no switching
--
--
--
200
3
--
A
A
V
IN2
2.7
--
6
V
Symbol
Test Conditions
Min
Typ
Max
Unit
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS5090E-00 August 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
