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RT5045A Datasheet, PDF (7/51 Pages) Richtek Technology Corporation – Power Management Unit Total Power Solution for SSD
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RT5045A
Parameter
Symbol
POR Rising Delay Time
Thermal Shutdown Threshold
TSD
Thermal Shutdown Hysteresis
CH1 (4A)
AVDD Quiescent Current
IINQ
AVDD LPM Quiescent
Output Voltage Scaling
Output Voltage Default
DC Output Voltage Programmable
step
Line Regulation
Load Regulation
IINLP
VOUT
VSTEP
Transient Load Regulation
H/S Switch On Resistance
L/S Switch On Resistance
Current Limit
Switching Frequency
Minimum On-Time
OVP Trip Threshold
OVP Propagation Delay
UVP Trip Threshold
UVP Propagation Delay
(Note 5)
Soft-Start Time
Discharge Resistance
RDS(ON)H
RDS(ON)L
IOC
FSW
TON
VOVP
TOVPDLY
VUVP
TUVPDLY
TSS
Efficiency
CH2 (1A)
AVDD Quiescent Current
IINQ
AVDD LPM Quiescent
Output Voltage Scaling
Output Voltage Default
DC Output Voltage Programmable
Step
Line Regulation
Load Regulation
IINLP
VOUT
VSTEP
Test Conditions
AVDD > VPORTH, detect the
POR rising edge.
VSEL = 0, VSEL1 = 0
Enable, no switching, not
include IAVIN
LPM enable, not include IAVIN
Controlled by I2C
VSEL0 = 0, VSEL1 = 0
Force PWM
VIN = 3.3V, VOUT = 2.5V, L =
0.47H, COUT = 22F x 2,
IOUT = 0.2 to 1.5A at
SR = 0.13A/s
VIN = 5V
VIN = 5V
Peak current, IMAX[6:5] = 10
FREQ[2:0] = 110
OVP detected
UVP detected
VIN = 3.3V, VOUT = 2.5V,
Load = 10mA
VIN = 3.3V, VOUT = 2.5V,
Load = 1A
Enable, no switching, not
include IAVIN
LPM enable, not include IAVIN
Controlled by I2C
VSEL0 = 0, VSEL1 = 0
Force PWM
Min
9
--
--
--
--
2.3
2%
--
--
--
--
--
--
5
1.8
--
115
--
55
--
--
--
85
90
--
--
0.9
2%
--
--
--
Typ
10
150
25
25
10
--
2.5
25
0.5
0.5
--
35
18
5.8
2
150
120
1
60
2
0.5
50
--
--
25
10
--
1.35
25
0.5
0.5
Max
11
--
--
35
20
3
+2%
--
--
--
84
--
--
--
2.2
200
125
--
65
--
0.8
--
--
--
35
20
1.6
+2%
--
--
--
Unit
ms
C
C
A
A
V
V
mV
%/V
%/A
mV
m
m
A
MHz
ns
%
s
%
s
ms

%
A
A
V
V
mV
%/V
%/A
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
DS5045A-00 March 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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