rt9202 ETC-unknow, rt9202 Datasheet - Page 5

• Manufacturer Part Number: rt9202
• Description: Single Synchronous Buck Dc-dc Controller
• Manufacturer: ETC-unknow

Absolute Maximum Ratings
CAUTION:
Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the
device. 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
DS9202-02 August 2002
VCC Supply Current / Regulated Voltage
Power-On Reset
Reference
Oscillator
Error Amplifier
PWM Controller Gate Driver
Nominal Supply Current
Regulated Voltage from BOOT
Rising VCC Threshold
VCC Threshold Hysteresis
Rising V
Reference Voltage
Free Running Frequency
Ramp Amplitude
DC gain
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
CC
Supply Voltage VCC
BOOT & UGATE to GND
Input, Output or I/O Voltage
Power Dissipation, P
SOP-8
Package Thermal Resistance
SOP-8, θ
Ambient Temperature Range
Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
= 5V, T
OCSET
JA
A
Parameter
= 25°C, Unless otherwise specified.)
Threshold
D
@ T
A
= 25°C
I
V
∆ V
R
R
R
R
Symbol
CC
CC
UGATE
UGATE
LGATE
LGATE
OSC
UGATE, LGATE open
V
V
V
BOOT= 12V
BOOT-V
V
VCC - V
V
BOOT
OCSET
OCSET1
UGATE
LGATE
= 12V
Test Conditions
= 1V
= 4.5V
= 1V
LGATE
UGATE
= 4.5V
= 1V,
= 1V
0.784
Min
3.85
250
0.3
0.8
32
--
--
--
--
--
--
5
Typ
1.25
1.75
0.8
300
4.1
0.5
35
3
6
7
5
4
2
15V
GND−0.3V ~ 7V
0.625W
160°C/W
0°C ~ +70°C
-40°C ~ +125°C
-65°C ~ +150°C
260°C
7V
To be continued
RT9202
www.richtek.com
0.816
Max
4.35
350
0.7
2.0
7.5
38
11
--
6
7
6
4
Units
V
KHz
mA
dB
V
Ω
Ω
Ω
Ω
V
V
V
V
P-P
5