RT8203GA Richtek USA Inc, RT8203GA Datasheet - Page 3

• 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

DS8203-04 March 2011
V
ALWAYS ON
OUT5
5V
V
C10
CC
5V
4.7µF
C13
0.1µF
C1
R7
15k
R8
10k
10µF
C10 = 330μF
L1
TON = VCC
1µF
1µF
C6
C2
C3
L1 = 7.6μH
f = 200kHz
D3
AO4702
C12
0.22µF
Q3
Q1
R1
3.9
C5
0.1µF
BSC119N03
VOUT5
D1
Frequency-dependent Components
TABLE
SEE
Figure 2. Adjustable Voltage Regulator
BAT254
C10 = 150μF
C8
0.1µF
TON = GND
R3
2.2
L1 = 5.6μH
f = 400kHz
R2
47
17
11
20
14
16
15
19
13
21
23
5
9
8
VCC
ILIM3
ILIM5
VIN
BOOT5
UGATE5
PHASE5
LGATE5
TON
VOUT5
FB5
VREF
GND
RT8203
LDO5
18
C11 = 470μF
TON = VCC
L2 = 4.7μH
f = 300kHz
UGATE3
PHASE3
LGATE3
PGOOD
BOOT3
VOUT3
LDO3
SKIP
ON3
ON5
PRO
FB3
NC
EN
28
27
24
12
3
4
25
10
6
26
22
7
1
2
VOUT3
2.2
R4
1M
R6
BSC119N03
V
0.1µF
CC
C9
C11 = 220μF
D2
BAT254
TON = GND
100k
R5
f = 500kHz
L2 = 3μH
Q4
AO4702
4.7µF
Q2
C4
Power-Good
INDICATOR
D4
10µF
C7
L2
3.3V ALWAYS ON
V
7V to 24V
V
V
ON
IN
REF
CC
OFF
R9
6.5k
R10
10k
C11
V
RT8203
3.3V
OUT3
www.richtek.com
C14
0.1µF
3