RT8203GA Richtek USA Inc, RT8203GA Datasheet - Page 2

• 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

RT8203
Typical Application Circuit
www.richtek.com
2
V
ALWAYS ON
OUT5
5V
V
C10
CC
5V
4.7µF
C1
10µF
L1
C6
C2
1µF
1µF
C3
C10 = 330μF
TON = VCC
L1 = 7.6μH
f = 200kHz
D3
AO4702
0.22µF
Q3
Q1
C12
R1
3.9
C5
0.1µF
BSC119N03
VOUT5
D1
TABLE
Frequency-dependent Components
SEE
BAT254
Figure 1. Fixed Voltage Regulator
C8
0.1µF
R3
2.2
C10 = 150μF
TON = GND
L1 = 5.6μH
R2
f = 400kHz
47
17
11
20
14
16
15
19
13
21
23
5
8
9
ILIM3
ILIM5
VCC
VIN
BOOT5
UGATE5
PHASE5
LGATE5
TON
VOUT5
VREF
FB5
GND
RT8203
LDO5
18
C11 = 470μF
UGATE3
TON = VCC
PHASE3
LGATE3
PGOOD
L2 = 4.7μH
f = 300kHz
BOOT3
VOUT3
LDO3
SKIP
PRO
ON3
ON5
FB3
NC
EN
28
27
24
12
3
4
25
10
6
26
22
7
1
2
2.2
R4
1M
VOUT3
R6
BSC119N03
0.1µF
C9
D2
BAT254
C11 = 220μF
TON = GND
V
f = 500kHz
L2 = 3μH
CC
100k
R5
AO4702
Q4
4.7µF
Q2
C4
D4
10µF
C7
Power-Good
INDICATOR
L2
3.3V ALWAYS ON
V
7V to 24V
V
V
ON
IN
REF
CC
DS8203-04 March 2011
OFF
C11
V
OUT3
3.3V