rt9214 Richtek Technology Corporation, rt9214 Datasheet - Page 4

• Manufacturer Part Number: rt9214
• Description: 5v/12v Synchronous Buck Dc-dc Controller
• Manufacturer: Richtek Technology Corporation

Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
(V
4
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RT9214
Free Running Frequency
V
Nominal Supply Current
Power-On Reset
POR Threshold
Hysteresis
Switcher Reference
Reference Voltage
Oscillator
Ramp Amplitude
DC ------------------------------------------------------------------------------------------------------------- −5V to 15V
DC ------------------------------------------------------------------------------------------------------------- −0.3V to V
Supply Voltage (V
BOOT, V
PHASE to GND
< 200ns ------------------------------------------------------------------------------------------------------ −10V to 30V
BOOT to PHASE ------------------------------------------------------------------------------------------ 15V
BOOT to GND
< 200ns ------------------------------------------------------------------------------------------------------ −0.3V to 42V
UGATE ------------------------------------------------------------------------------------------------------- V
LGATE ------------------------------------------------------------------------------------------------------- GND - 0.3V to V
Input, Output or I/O Voltage ----------------------------------------------------------------------------- GND-0.3V to 7V
Power Dissipation, P
SOP-8 -------------------------------------------------------------------------------------------------------- 0.625W
Package Thermal Resistance
SOP-8, θ
Junction Temperature ------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------- 260°C
Storage Temperature Range ----------------------------------------------------------------------------
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------- 200V
Supply Voltage, V
Ambient Temperature Range ---------------------------------------------------------------------------- 0°C to 70°C
Junction Temperature Range ---------------------------------------------------------------------------- 0°C to 125°C
CC
CC
= 5V/12V, T
Supply Current
BOOT
JA
Parameter
--------------------------------------------------------------------------------------------------
- V
A
= 25°C, unless otherwise specified)
PHASE
CC
CC
) ------------------------------------------------------------------------------------- 16V
D
-------------------------------------------------------------------------------------- 5V ± 5%,12V ± 10%
------------------------------------------------------------------------------------ 16V
@ T
A
= 25°C (Note 4)
I
V
V
V
f
∆V
Symbol
CC
OSC
CCRTH
CCHYS
REF
OSC
(Note 1)
UGATE and LGATE Open
V
V
V
V
CC
CC
CC
CC
Rising
= 12V
= 12V
= 12V
Test Conditions
(Note 3)
0.784
0.35
Min
160°C/W
−
250
3.7
DS9214-02
--
--
PHASE
65°C to 150°C
- 0.3V to V
Typ
300
4.1
0.5
0.8
1.5
6
CC
To be continued
+15V
December 2004
0.816
Max
350
4.5
0.8
15
--
VCC
BOOT
+ 0.3V
Units
+ 0.3V
V
kHz
mA
V
V
V
P-P