RT9203 データシートの表示（PDF） - Richtek Technology
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RT9203 Datasheet PDF : 16 Pages
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RT9203/A
Preliminary
Absolute Maximum Ratings
l Supply Voltage VCC ------------------------------------------------------------------------------------------------ 7V
l BOOT & UGATE to GND ------------------------------------------------------------------------------------------- 19V
l Input, Output or I/O Voltage --------------------------------------------------------------------------------------- GND-0.3V to 7V
l Power Dissipation, PD @ TA = 25°C
SOP-8 ------------------------------------------------------------------------------------------------------------------ 0.625W
l Package Thermal Resistance
SOP-8, θJA ------------------------------------------------------------------------------------------------------------- 160° C/W
l Ambient Temperature Range -------------------------------------------------------------------------------------- 0° C to +70° C
l Junction Temperature Range -------------------------------------------------------------------------------------- −40° C to +125° C
l Storage Temperature Range --------------------------------------------------------------------------------------- −65° C to +150° C
l Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C
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
(VCC = 5V, TA = 25° C, Unless otherwise specified.)
Parameter
VCC Supply Current
Symbol
Test Conditions
Nominal Supply Current
VCC Regulated Voltage
Power-On Reset
ICC
V CC
UGATE, LGATE open
VBOOT = 12V
Rising VCC Threshold
VCC Threshold Hysteresis
Reference
Reference Voltage
Oscillator
VFB
Both PWM and linear regulator
Free Running Frequency
Ramp Amplitude
PWM Error Amplifier
∆ VOSC
DC gain
PWM Controller Gate Driver
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
Linear Regulator
RUGATE
RUGATE
RLGATE
RLGATE
BOOT = 12V
BOOT-VUGATE = 1V
VUGATE = 1V
VCC - VLGATE = 1V
VLGATE = 1V
DRV Driver Source
VDRV = 2V
Min Typ Max Units
--
3
--
mA
5.0 6.0 7.0
V
3.8 4.1 4.4
V
--
0.5
--
V
0.784 0.8 0.816 V
250 300 350 kHz
--
1.75
--
VP-P
32
35
38
dB
--
7.5
11
Ω
--
5
8
Ω
--
3.5
6
Ω
--
2
5
Ω
100 --
--
mA
To be continued
www.richtek.com
6
DS9203/A-10 March 2007
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