rt9205 Richtek Technology Corporation, rt9205 Datasheet - Page 6

• Manufacturer Part Number: rt9205
• Description: Dual Regulators - Synchronous Buck Pwm Dc-dc And Linear Controller
• Manufacturer: Richtek Technology Corporation

RT9205/A
Absolute Maximum Ratings
CAUTION:
Stresses beyond the ratings specified in
This is a stress only rating and operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied.
Electrical Characteristics
(V
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6
VCC Supply Current
Nominal Supply Current
VCC Regulated Voltage
Power-On Reset
Rising VCC Threshold
VCC Threshold Hysteresis
Reference
Reference Voltage
Oscillator
Free Running Frequency
Ramp Amplitude
PWM Error Amplifier
DC gain
PWM Controller Gate Driver
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
Linear Regulator
DRV Driver Source
Protection
FB Over-Voltage Trip
FB & FBL Under-Voltage Trip
Soft-Start Interval
Supply Voltage VCC -------------------------------------------------------------------------------------------------- 7V
BOOT & UGATE to GND --------------------------------------------------------------------------------------------- 19V
Input, Output or I/O Voltage ----------------------------------------------------------------------------------------- GND-0.3V to 7V
Package Thermal Resistance
SOP-14, θ
Ambient Temperature Range ---------------------------------------------------------------------------------------- 0°C to +70°C
Junction Temperature Range ----------------------------------------------------------------------------------------
Storage Temperature Range ----------------------------------------------------------------------------------------
Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C
CC
= 5V, T
A
JA ------------------------------------------------------------------------------------------------------------------------------------------------------------
= 25°C, Unless otherwise specified.)
Parameter
I
V
Δ V
R
R
R
R
V
CC
Symbol
“
CC
FB
UGATE
UGATE
LGATE
LGATE
Absolute Maximum Ratings
OSC
UGATE, LGATE open
V
Both PWM and linear regulator
BOOT= 12V
BOOT-V
V
V
V
V
FB Rising
FB & FBL Falling
BOOT
UGATE
CC
LGATE
DRV
- V
= 2V
= 12V
LGATE
Test Conditions
= 1V
= 1V
UGATE
= 1V,
= 1V
”
may cause permanent damage to the device.
0.784
Min
250
100
3.8
0.9
32
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5
DS9205/A-09 October 2008
Typ
1.75
300
4.1
0.5
0.8
7.5
3.5
0.5
2.5
35
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3
6
5
2
1
160° C/W
−
−
40°C to +125°C
65°C to +150°C
0.816
Max
0.65
350
4.4
38
11
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7
8
6
5
Units
V
kHz
mA
mA
ms
dB
V
V
V
P-P
Ω
Ω
Ω
Ω
V
V
V