RT8203GA Richtek USA Inc, RT8203GA Datasheet - Page 11

• Manufacturer Part Number: RT8203GA
• Description: IC CTRLR SMPS STPDN DUAL 28SSOP
• Manufacturer: Richtek USA Inc

Specifications of RT8203GA

• Output Isolation: Isolated
• Frequency Range: Adjustable, Selectable
• Voltage - Input: 7 V ~ 24 V
• Voltage - Output: Selectable
• Power (watts): 1.05W
• Operating Temperature: -10°C ~ 85°C
• Package / Case: 28-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Operating Characteristics
DS8203-04 March 2011
No load on LDO5, LDO3,VOUT5, VOUT3 and REF, T
100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.001
0.001
0
0.001
VOUT5 Efficiency vs. Load Current
VOUT5 Efficiency vs. Load Current
VOUT3 Efficiency vs. Load Current
0.01
0.01
0.01
Load Current (A)
Load Current (A)
Load Current (A)
Forced CCM Mode
Forced CCM Mode
Ultrasonic Mode
Forced CCM Mode
0.1
0.1
0.1
Diode-Emulation Mode
Ultrasonic Mode
V
ON3 = GND, ON5 = VCC
C
V
ON3 = ON5 = VCC
C
V
ON3 = GND, ON5 = VCC
C
IN
IN
OUT
IN
OUT
OUT
Ultrasonic Mode
Diode-Emulation Mode
Diode-Emulation Mode
= 12V,
= 8V
= 24V,
= 330μF, L = 7.6μH
= 470μF, L = 4.7μH
= 330μF, L = 7.6μH
1
1
1
ON
10
10
10
= VCC, EN = VIN, T
100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.001
0.001
0
0.001
VOUT5 Efficiency vs. Load Current
VOUT3 Efficiency vs. Load Current
VOUT3 Efficiency vs. Load Current
A
Diode-Emulation Mode
= 25° ° ° ° ° C, unless otherwise specified.
0.01
0.01
0.01
Load Current (A)
Load Current (A)
Load Current (A)
Forced CCM Mode
Forced CCM Mode
0.1
0.1
0.1
Ultrasonic Mode
V
ON3 = GND, ON5 = VCC
C
Ultrasonic Mode
V
ON3 = ON5 = VCC
C
V
ON3 = ON5 = VCC
C
Forced CCM Mode
Diode-Emulation Mode
IN
OUT
IN
IN
OUT
OUT
Diode-Emulation Mode
= 12V,
= 8V,
= 24V,
RT8203
= 330μF, L = 7.6μH
= 470μF, L = 4.7μH
= 470μF, L = 4.7μH
www.richtek.com
Ultrasonic Mode
1
1
1
11
10
10
10