rt9232b Richtek Technology Corporation, rt9232b Datasheet - Page 6

• Manufacturer Part Number: rt9232b
• Description: Programmable Frequency Synchronous Buck Controller
• Manufacturer: Richtek Technology Corporation

RT9232B
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θ
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6
Reference
Error Amplifier Reference Voltage
Error Amplifier
DC gain
Gain-Bandwidth product
Slew Rate
Soft Start
External SS Source Current
PWM Controller Gate Driver
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
Driving Capability
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
Protection
OCSET Current Source
Under-Voltage Protection
Under-Voltage Protection Delay
JEDEC 51-3 thermal measurement standard.
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
JA
is measured in the natural convection at T
Parameter
V
GBW
SR
I
R
R
R
R
I
I
I
I
I
SS
UG_SC
UG_SK
LG_SC
LG_SK
OCSET
Symbol
REF
UG_SC
UG_SK
LG_SC
LG_SK
COMP=10pF
V
V
V
V
V
V
V
V
V
V
FB Falling
BOOT − PHASE
BOOT − UGATE
BOOT − PHASE
PVCC − LGATE
LGATE
BOOT − UGATE
UGATE − PHASE
PVCC − LGATE
LGATE − GND
OCSET
A
= 25°C on a low effective thermal conductivity test board of
= 1V
Test Conditions
= 11.5V
= 12V
= 1V
= 12V
= 12V
= 1V
= 1V
= 12V
= 12V
0.792
Min
170
0.5
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7
DS9232B-03 March 2007
Typ
200
0.8
5.2
2.7
3.5
1.7
1.0
1.6
3.2
0.6
2.0
88
15
10
30
6
0.808
Max
230
0.7
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Units
MHz
V/μs
dB
μA
μA
μs
Ω
Ω
Ω
Ω
V
A
A
A
A
V