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RT8239CGQW

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
RT8239A/B/C
10
DS8239A/B/C-06 October 2012www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θ
JA
is measured at T
A
= 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θ
JC
is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
RT8239A/B/C
11
DS8239A/B/C-06 October 2012 www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Typical Operating Characteristics
V
OUT2
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 12V, R
TON
= 100kΩ, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V, ENLDO = 5V
DEM
ASM
V
OUT2
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 20V, R
TON
= 100kΩ, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V, ENLDO = 5V
DEM
ASM
V
OUT2
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 8V, R
TON
= 100kΩ, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V, ENLDO = 5V
DEM
ASM
V
OUT1
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 20V, R
TON
= 100kΩ, V
ENTRIP1
= 1.5V
V
ENTRIP2
= 5V, ENLDO = 5V
DEM
ASM
V
OUT1
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 8V, R
TON
= 100kΩ, V
ENTRIP1
= 1.5V
V
ENTRIP2
= 5V, ENLDO = 5V
DEM
ASM
V
OUT1
Efficiency vs. Load Current
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Load Current (A)
Efficiency (%)
V
IN
= 12V, R
TON
= 100kΩ, V
ENTRIP1
= 1.5V
V
ENTRIP2
= 5V, ENLDO = 5V
DEM
ASM
RT8239A/B/C
12
DS8239A/B/C-06 October 2012www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
V
OUT1
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
0.001 0.01 0.1 1 10
Load Current (A)
Switching Frequency (kHz) 1
V
IN
= 8V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 1.5V,
V
ENTRIP2
= 5V
ASM
DEM
V
OUT1
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
260
0.001 0.01 0.1 1 10
Load Current (A)
Switch Frequency (kHz) 1
V
IN
= 12V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 1.5V,
V
ENTRIP2
= 5V
ASM
DEM
V
OUT1
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
260
0.001 0.01 0.1 1 10
Load Current (A)
Switching Frequency (kHz) 1
V
IN
= 20V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 1.5V,
V
ENTRIP2
= 5V
ASM
DEM
V
OUT2
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
0.001 0.01 0.1 1 10
Load Current (A)
Switching Frequency (kHz) 1
V
IN
= 12V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V
ASM
DEM
V
OUT2
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
0.001 0.01 0.1 1 10
Load Current (A)
Switching Frequency (kHz) 1
V
IN
= 20V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V
ASM
DEM
V
OUT2
Switching Frequency vs. Load Current
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
0.001 0.01 0.1 1 10
Load Current (A)
Switching Frequency (kHz) 1
V
IN
= 8V, R
TON
= 100kΩ,
ENLDO = VIN, V
ENTRIP1
= 5V,
V
ENTRIP2
= 1.5V
ASM
DEM
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

RT8239CGQW

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Description:
IC REG CTRLR POWER 2OUT 20WQFN
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New from this manufacturer.
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