rt9212 Richtek Technology Corporation, rt9212 Datasheet - Page 6

• Manufacturer Part Number: rt9212
• Description: Dual Synchronous Buck Dc-dc Linear Power Controller
• Manufacturer: Richtek Technology Corporation

Note 1.Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
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6
RT9212
DRV Driver Source
Upper Gate Source (UGATE1 and 2)
Upper Gate Sink (UGATE1 and 2)
Lower Gate Source (LGATE1 and 2)
Lower Gate Sink (LGATE1 and 2)
Upper Gate Rising Time (UGATE1 and 2) T
Upper Gate Falling Time (UGATE1 and 2) T
Lower Gate Rising Time (LGATE1 and 2) T
Lower Gate Falling Time (LGATE1 and 2) T
Dead Time
FB1 & FB2 Over-Voltage Trip
FB1 & FB2 Under-Voltage Trip
OCSET1 & OCSET2 Current Source
OCP Blocking Time
Soft-Start Interval
Upper Threshold
Lower Threshold
Linear Regulator
PWM Controller Gate Drivers
Protection
Power Good
V2 Error Amplifier (Internal Compensation)
DC Gain
OCSET/SD
for 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.
Logic-Low Voltage
Logic-High Voltage
Parameter
I
R
R
R
T
Δ
Δ
I
T
V
V
V
V
R
Symbol
DS
OCSET
R_UGATE
F_UGATE
R_LGATE
F_LGATE
DT
FBOVT
FBUVT
SS
PG+
PG–
UGATE
LGATE
LGATE
IL
IH
UGATE
Preliminary
Shutdown
Enable
BOOT = 10V
BOOT − V
V
V
V
C
C
C
C
FB1 & FB2 Rising
FB1 & FB2 Falling
V
FB1 & FB2 Rising
FB1 & FB2 Rising
UGATE
CC
LGATE
OCSET1/SD
Load
Load
Load
Load
− V
= 3.3nF
= 3.3nF
= 3.3nF
= 3.3nF
Test Conditions
LGATE
= 1V
= 1V
UGATE
,
OCSET2/SD
= 1V
= 1V
= 4.5V
Min
125
110
2.0
34
80
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DS9212-05 March 2007
137.5
62.5
Typ
100
320
115
35
70
50
50
32
40
85
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7
5
4
2
4
Max Units
100
540
120
0.2
75
46
90
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mA
μA
ms
dB
ns
ns
ns
ns
ns
ns
%
%
%
%
Ω
Ω
Ω
Ω
V