CM3718 Datasheet, PDF (3/10 Pages) List of Unclassifed Manufacturers – 1.5A LOW NOISE PWM STEP DOWN REGULATOR

CM3718
1.5A LOW-NOISE PWM STEP-DOWN REGULATOR
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which the
device could be permanently damaged.
PVIN/VIN ………….....................................….......-0.3V to 6.0V
Voltage on Any Other Pin ………... GND – 0.3V to VIN + 0.3V
Output Current, Source or Sink ……......…………........…...1.5A
Junction Temperature ...…………………… …………150°C
Storage Temperature ……................……. -65°C to 125°C
Lead Temperature (Soldering, 5 sec)……………….. 260°C
Thermal Dissipation(θ_JC )….. ………………….. .50°C/W
OPERATING CONDITIONS
Temperature Range ............................. -40°C to 85°C
PVIN Operating Range .........................2.0V to 4.0V
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply T_A=25°C;
VIN=+3.3V and PVIN=+3.3V) maximum ratings are stress ratings only and functional device operation is not implied.
(Note 1)
Symbol
Parameter
Test Conditions
CM3718
Unit
Min.
Typ.
Max.
SWITCHING REGULATOR
V_REF
Adjustable Output Voltage
VREF
VIN
V
fsw
Switching Frequency
CM3718
1.2
MHz
I_OUT(RMS)
Maximum Output RMS Current
CM3718
1.5
A
I_OUT(PEAK)
Maximum Output Peak Current
CM3718
3
A
MOSFETs
RDS_(ON)
Drain to Source on-State Resistance
PVIN=5V
250
mΩ
SUPPLY
VFB = 1.4V
I_VIN
Quiescent Current
LC unconnected
220
µA
VFB = 1.4V
I_PVIN
LC unconnected
500
µA
2005/02/02 Rev. 1.5
Champion Microelectronic Corporation
Page 3