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VCTA25201B-R33MS6 Datasheet(PDF) 12 Page - Richtek Technology Corporation

Part # VCTA25201B-R33MS6
Description  2.1MHz, 20A Multi-Phase Step-Down Converter with I2C Interface
PDF  50 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

VCTA25201B-R33MS6 Datasheet(HTML) 12 Page - Richtek Technology Corporation

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RTQ2134-QA
Copyright © 2022 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
DSQ2134-QA-02
May
2022
12
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
SDA, SCL,
VSELA,
WDOG_RST
Logic-High VIH
3V
 VIN  6V
0.7 x
VIO
--
--
V
Logic-Low
VIL
3V
 VIN  6V
--
--
0.3 x
VIO
EN Threshold
Logic-High VENH
1.2
--
--
V
Logic-Low
VENL
--
--
0.4
External Supply Voltage for
I/O Pin
VIN_I/O
1.7
1.8
VIN
V
VOUT DC Accuracy
Auto PFM/PWM, VOUT = 1V
(Note 5)
−2.5
--
2.5
%
Forced PWM, 0.6V
 VOUT  1.85V
−1.5
--
1.5
%
Load Regulation
VLOAD
IOUT(DC) = 1 to 5A
(Note 5)
--
−0.08
--
%/A
Line Regulation
VLINE
3V
 VIN  6V, IOUT(DC) = 1.5A
(Note 5)
--
0.2
--
%/V
Load Transient Response
2phase operation, 0.1 to 4A, tR = tF = 1
s,
L = 0.33
H, COUT = 44F/phase
(Note 5)
--
40
--
mV
1phase operation, 0.1 to 2A, tR = tF = 1
s,
L= 0.33
H, COUT = 44F/phase
(Note 5)
--
40
--
mV
Line Transient Response
4V to 5V, tR = tF = 10
s
(Note 5)
--
40
--
mV
Current Balance
Load = 10A, |IAvg
− ILX_1 or 4 |
--
--
0.5
A
Phase Adding Level
From 1phase to 2phase
(Note 5)
--
3
--
A
Phase Shedding Level
From 2phase to 1phase
(Note 5)
--
2.6
--
A
Soft-Start Time
Tstart
Slew Rate = 10mV/
s
−20
--
20
%
High-Side Switch Current
Limit per Channel
ILIM_H
5.8
8
11
A
Low-Side Switch Current
Limit per Channel
ILIM_L
5.1
7
9
A
Thermal Shutdown
TSD
--
160
--
C
Thermal Shutdown
Hysteresis
TSD
--
30
--
C
HOT Die Warning
0xAA = 0x02
(Note 5)
--
109
--
C
HOT Die Hysteresis
THYSHD
(Note 5)
--
15
--
C
Discharge Resistor
70
115
180
Output UVP Flag
VUVP_T
Trigger Level
40
50
60
%
VUVP_R
Recovery Level
--
57
--
%
Output OVP Flag
VOVP_T
Trigger Level
123
133
143
%
VOVP_R
Recovery Level
--
125
--
%
Switching Frequency
fSW
VOUT = 1V
1850
2100
2500
kHz



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