DS8816A Datasheet, PDF (9/21 Pages) Richtek Technology Corporation – Dual-Phase PWM Controller with PWM-VID Reference

Typical Operating Characteristics
Efficiency vs. Load Current
94
92
90 ^{VIN = 5V}
88
86
84
VIN = 12V
82
80 VIN = 19V
78
76
74
0.01
0.1
VPSI = 1.2V, VOUT = 1V
1
10
100
Load Current (A)
Current Limit Setting Current vs. Temperature
16
15
14
13
12
11
10
9
8
7
6
VPVCC = 5V, No load
5
-50 -25
0
25 50 75 100 125
Temperature (°C)
RT8816A
Inductor Valley Current vs. Load Current
30
25
IL2
20
IL1
15
10
5
0
-5
0
VIN = 19V, VPVCC = 5V
10
20
30
40
50
60
Load Current (A)
Reference Voltage vs. Temperature
2.010
2.005
2.000
1.995
1.990
1.985
1.980
VPVCC = 5V, No load
-50 -25
0
25 50 75 100 125
Temperature (°C)
Power On from EN
Power Off from EN
VEN
(5V/Div)
VOUT
(1V/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
VIN = 12V, VPVCC = 5V, IOUT = 40A
Time (200μs/Div)
VEN
(5V/Div)
VOUT
(1V/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
VIN = 12V, VPVCC = 5V, IOUT = 40A
Time (200μs/Div)
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS8816A-00 September 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
9