rt9232a Richtek Technology Corporation, rt9232a Datasheet - Page 4

• Manufacturer Part Number: rt9232a
• Description: Programmable Frequency Synchronous Buck Controller
• Manufacturer: Richtek Technology Corporation

RT9232A
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
(V
www.richtek.com
4
SENSE Rising Threshold for start up V
V
Nominal Supply Current
Power-On Reset (POR)
V
Power On Reset Hysteresis
Enable Input Threshold (ON)
Enable Input Threshold (OFF)
Oscillator
Free Running Frequency
Ramp Amplitude
Reference
Error Amplifier Reference Voltage
DC ------------------------------------------------------------------------------------------------------------------- −5V to 15V
DC ------------------------------------------------------------------------------------------------------------------- −0.3V to V
Supply Input Voltage, V
PHASE to GND
< 200ns ------------------------------------------------------------------------------------------------------------ −10V to 30V
BOOT to PHASE ------------------------------------------------------------------------------------------------ 15V
BOOT to GND
< 200ns ------------------------------------------------------------------------------------------------------------ −0.3V to 42V
SS, FB, COMP, RT --------------------------------------------------------------------------------------------- 6V
Input, Output or I/O Voltage ----------------------------------------------------------------------------------- GND−0.3V to V
Junction Temperature ------------------------------------------------------------------------------------------ 150°C
Storage Temperature Range ----------------------------------------------------------------------------------
Ambient Temperature Range --------------------------------------------------------------------------------- 0°C to 70°C
Junction Temperature Range --------------------------------------------------------------------------------- 0°C to 125°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------- 260°C
Package Thermal Resistance (Note 4)
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV
Supply Input Voltage, V
Supply Voltage to Drain of Upper MOSFETs, V
CC
MM (Machine Mode) ------------------------------------------------------------------------------------------- 200V
SOP-14, θ
CC
CC
= 12V, T
Supply Current
Rising Threshold
JA
A
Parameter
= 25°C, Unless otherwise specified.)
----------------------------------------------------------------------------------------------------- 100°C/W
CC
CC
RT9232A
Variation
, PVCC --------------------------------------------------------------------------- 15V
------------------------------------------------------------------------------------ 12V
V
I
V
V
V
f
Δ V
CC
OSC
SENSE_ON
Symbol
CC_ON
EN_ON
EN,_OFF
REF
OSC
(Note 1)
IN
------------------------------------------------------- 3.3V, 5V to 12V
EN=V
V
V
V
V
6k < (RT to GND) < 200k
SENSE
SENSE
SENSE
SENSE
CC
(Note 3)
Test Conditions
= 4.5V
= 4.5V
= 4.5V
= 4.5V
, UGATE, LGATE open
0.792
Min
170
-20
8.4
0.4
0.8
--
--
--
--
DS9232A-02 March 2007
−
65°C to 150°C
Typ.
200
0.7
1.5
0.8
±
--
--
--
3
2
10%
To be continued
0.808
Max
CC
230
10
20
--
--
--
--
2
2
+15V
CC
±
+ 0.3V
10%
Units
kHz
V
mA
%
V
V
V
V
V
V
P-P