CM8562B

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

Storage Temperature ……................……. -65°C to 125°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

Output Offset Voltage

-20

20

mV

Operating Current at VIN

No load, Cout=200uF

1

mA

0.8/1.2

2/3

%

｜Δ

Load Regulation (DDR I/II)

0.8/1.2

2/3

%

VCCA>VOUT+1.9V

Iout=1.8A

0.3

0.4

V

Dropout Voltage

VCCA>VOUT+1.9V

Iout=1.5A

0.2

0.25

V

At Room Temp.

190

230

μA

Current in Shutdown Mode

Ohm

90

110

μA

Input Voltage Range (Note 3)

No Load

1

2.5/1.8

6

V

Input Voltage Range (Note 3)

3.15

3.3

6

V

SHORT CIRCUIT PROTECTION

Current Limit

5

A

Short Current

Sinking

2

A

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