RT3668EB
Electrical Characteristics
(VCC = 5V, TA = 25C, unless otherwise specified)
Parameter
Input Power Supply
Supply Voltage
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC
4.5
--
5
9
5.5
15
V
mA
A
V
Supply Current
I
I
EN = 3V, not switching
EN = 0V
VCC
Shutdown Current
PVCC Supply Voltage
PVCC Supply Current
--
--
100
5.5
--
SHDN
V
I
4.5
--
5
PVCC
V
= 5V, not switching
120
A
PVCC
BOOTX
Driver Power On Reset (Driver POR)
V
V
V
PVCC POR rising
PVCC POR falling
--
3.85
3.65
200
4.1
--
V
V
POR_r
Driver POR Threshold
3.4
100
POR_f
Driver POR Hysteresis
Reference and DAC
350
mV
POR_Hys
Reference Voltage Output
V
0.795
0.8
0
0.805
0.5
V
REF
FB
V
= 1.0000 to 1.5500
DAC
0.5
%SVID
(No load, CCM mode)
V
DAC
V
DAC
V
DAC
= 0.8000 to 1.0000
= 0.3000 to 0.8000
= 0.2500 to 0.3000
5
8
0
0
0
5
8
mV
mV
mV
DC Accuracy
V
80
80
Reference and DAC
RGND Current
I
EN = 3V, not switching
SetVID fast
--
--
200
15
A
RGND
Slew Rate
Dynamic VID Slew Rate
Error Amplifier
Input Offset
SR
7.5
10
mV/s
V
4
70
--
--
80
5
4
--
mV
dB
EAOFS
DC Gain
A
R = 47k
L
DC
Gain-Bandwidth Product
Output Voltage Range
GBW
V
C
R
= 5pF
--
MHz
V
LOAD
LOAD
= 47k
0.3
--
3.6
COMP
I
I
/
EA,SRC
EA Source/Sink Current
--
5
--
mA
EA,SNK
Current Sense Amplifier
Input Offset Voltage
V
0.4
1
--
--
--
0.4
--
mV
M
M
OSCS
Impedance at Neg. Input
Impedance at Pos. Input
R
R
ISENxN
ISENxP
1
--
V
= 1.1V,
DAC
Input range
V
40
2
--
--
40
2
mV
%
ISEN_IN
ISEN_Err
(ISENxP ISENxN)
V = 1.1V
DAC
Current Sense Gain Error
A
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS3668EB-05 August 2019
www.richtek.com
11
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