RT4503/A
Typical Operating Characteristics
Efficiency vs. Output Current
Efficiency vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
0
100
90
80
Load = 20mA
Load = 30mA
VIN = 3.3V
VIN = 3.7V
VIN = 4.2V
VIN = 5.5V
70
60
50
40
30
20
10
0
VOUT = 30V
VOUT = 30V
0.025 0.03
0
0.005
0.01
0.015
0.02
2.5 2.8 3.1 3.4 3.7
4
4.3 4.6 4.9 5.2 5.5
Output Current (A)
Input Voltage (V)
Quiescent Current vs. Input Voltage
Quiescent Current vs. Temperature
0.80
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.75
0.70
0.65
0.60
0.55
0.50
0.45
Switching Quiescent Current
Non-Switching Quiescent Current
Switching Quiescent Current
2.5
3
3.5
4
4.5
5
5.5
-50
-25
0
25
50
75
100
125
Temperature ( C)
Input Voltage (V)
°
Oscillator Frequency vs. Input Voltage
Oscillator Frequency vs. Temperature
584
582
580
578
576
574
572
570
568
566
564
562
560
558
650
630
610
590
570
550
530
510
490
470
450
2.5
3
3.5
4
4.5
5
5.5
-50
-25
0
25
50
75
100
125
Input Voltage (V)
Temperature (°C)
Copyright 2015 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS4503/A-03 June 2015
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
