RT9203 RICHTEK [Richtek Technology Corporation], RT9203 Datasheet - Page 6

• Manufacturer Part Number: RT9203
• Description: Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
• Manufacturer: RICHTEK [Richtek Technology Corporation]

www.richtek.com
6
RT9203/A
Absolute Maximum Ratings
l
l
l
l
l
l
l
l
l
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
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
Supply Voltage VCC ------------------------------------------------------------------------------------------------ 7V
BOOT & UGATE to GND ------------------------------------------------------------------------------------------- 19V
Input, Output or I/O Voltage --------------------------------------------------------------------------------------- GND-0.3V to 7V
Power Dissipation, P
SOP-8 ------------------------------------------------------------------------------------------------------------------ 0.625W
Package Thermal Resistance
SOP-8,
Ambient Temperature Range -------------------------------------------------------------------------------------- 0° C to +70°C
Junction Temperature Range -------------------------------------------------------------------------------------- 40° C to +125°C
Storage Temperature Range --------------------------------------------------------------------------------------- 65° C to +150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C
CC
= 5V, T
JA
A
Parameter
------------------------------------------------------------------------------------------------------------- 160°C/W
= 25° C, Unless otherwise specified.)
D
@ T
A
= 25°C
I
V
V
R
R
R
R
CC
Symbol
CC
FB
UGATE
UGATE
LGATE
LGATE
V
“
OSC
Absolute Maximum Ratings
UGATE, LGATE open
V
Both PWM and linear regulator
BOOT = 12V
BOOT-V
V
VCC - V
V
V
Preliminary
BOOT
UGATE
LGATE
DRV
= 2V
= 12V
Test Conditions
= 1V
= 1V
LGATE
UGATE
= 1V
= 1V
”
may cause permanent damage to the device.
0.784
Min
250
100
3.8
5.0
32
--
--
--
--
--
--
--
DS9203/A-10 March 2007
Typ
1.75
300
0.5
6.0
4.1
0.8
7.5
3.5
35
--
3
5
2
To be continued
0.816
Max
350
7.0
4.4
38
11
--
--
--
--
8
6
5
Units
V
kHz
mA
mA
dB
V
V
V
V
P-P