CM8562B
1.8A SINK & SOURCE ADJUSTABLE LINEAR REGULATOR
2008/04/15 Rev. 1.0 Champion Microelectronic Corporation Page 4
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which the device could be permanently damaged.
VIN, VCCA, VFB …................................…....……………..7V
Output RMS Current, Source or Sink .....…………........…...1.8A
Lead Temperature (Soldering, 5 sec)……………….. 260°C
Thermal Resistance(θJC)………….…… 14°C/W (PSOP-8)
Storage Temperature ……................……. -65°C to 125°C Thermal Resistance(θJC)…………….…… 8°C/W (TO-252)
Thermal Resistance(θJA)……………………...…… 75°C/W
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply TA=25°C;
VIN=+2.5V and VCCA=+3.3V, VREFEN=1.25V) maximum ratings are stress ratings only and functional device operation is not
implied. (Note 1)
CM8562B
Symbol Parameter Test Conditions
Min. Typ. Max.
Unit
VOS Output Offset Voltage IOUT=0A (Note 2) -20 20 mV
IOP Operating Current at VIN No load, Cout=200uF 1 mA
IL: 0A -> 1.8A 0.8/1.2 2/3 %
|ΔVLOAD| Load Regulation (DDR I/II) IL: 0A -> -1.8A 0.8/1.2 2/3 %
VCCA>VOUT+1.9V
Iout=1.8A 0.3 0.4 V
VDROPOUT Dropout Voltage VCCA>VOUT+1.9V
Iout=1.5A 0.2 0.25 V
ICCQ Quiescent Current at VCCA At Room Temp. 190 230 μA
ISHDN Current in Shutdown Mode REFEN<0.2V, RL = 10
Ohm 90 110 μA
VIN Input Voltage Range (Note 3) No Load 1 2.5/1.8 6 V
VCCA Input Voltage Range (Note 3) RL = 10 Ohm 3.15 3.3 6 V
SHORT CIRCUIT PROTECTION
ILIMIT Current Limit 5 A
ISC,VIN Short Current Sinking 2 A
ISC,GND Short Current Sourcing 2 A
OVER THERMAL PROTECTION
THSD Thermal Shutdown Temperature 3.15V<=VCCA<=6V 110 125 135 ℃
Thermal Shutdown Hysteresis 25 30 35 ℃
REFEN FUNCTION
REFEN Threshold
VREFEN < VIN
VREFEN < VCCA – 1.9V 0.4 0.5 0.6 V
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions
Note 2: VOS = VREFEN – VOUT
Note 3: Keep VCCA >= VIN and VCCA >=VREFEN + 1.9V on operation power on and power off sequences
Note 4: Guaranteed by design, not 100% test