CMPWR280TO datasheet(4/11 Pages) ONSEMI

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CMPWR280

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SPECIFICATIONS (Cont’d)

Table 3. ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Units

ESD Protection (HBM)

2000

Pin Voltages

VCC, VSBY ,VOUT

DRIVE

[GND − 0.5] to [+6.0]

[GND − 0.5] to [VCC (VSBY) + 0.5]

Storage Temperature Range

−40 to +150

C

Operating Temperature Range

Ambient

Junction

0 to +70

0 to +125

C

Power Dissipation

TO−263 (Note 1)

Internally Limited

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. The maximum power dissipation of this device is internally limited by thermal shutdown circuitry. To achieve a power dissipation of 3.0 watts,

a case−to−ambient thermal resistance of 25C/W must be provided. This will typically require dedicated heatsinking ability of the printed

circuit board. For more details, please see the Typical Thermal Characteristics section.

Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 2)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VOUT

Regulator Output Voltage

0 mA < ILOAD < 1500 mA (VCC)

0 mA < ILOAD < 375 mA (VSBY)

3.135

3.300

3.465

VCCSEL

Select Voltage

VCC Regulator Enabled

4.50

4.70

VCCDES

VCC Deselect Voltage

VCC Regulator Disabled

3.90

4.10

VCCHYST

Hysteresis Voltage

VCC Hysteresis (Note 3)

0.40

IOUT

Regulator Output Current

VCC Selected

VSBY Selected

1500

375

2500

750

ISC

Short−circuit Output Current

VCC Selected

VSBY Selected

800

200

IRCC

VCC Pin Reverse Leakage

VSBY = 5.0 V, VCC = 0 V

100

IRSBY

VSBY Pin Reverse Leakage

VSBY = 0 V, VCC = 5.0 V

100

VR LOAD

VCC Load Regulation

VCC Selected, ILOAD = 15 mA to 1500 mA

VSBY Load Regulation

VSBY Selected, ILOAD = 5 mA to 375 mA

VR LINE

Line Regulation

VCC = 4.5 to 5.5 V, ILOAD = 5 mA

ICC

VCC Supply Current

VCC Selected, IOUT = 0 mA

VCCDES > VCC > VAUX or VOUT

1.5

0.1

3.0

0.2

ISBY

VSBY Supply Current

VSBY Selected, IOUT = 0 mA

1.5

3.0

IGND

Ground Pin Current (Note 4)

Regulator Disabled (only VOUT Present)

Regulator Selected, ILOAD = 5 mA

Regulator Selected = 5 V, ILOAD = 500 mA

0.2

1.5

1.8

0.3

3.0

3.5

ROH

Drive RDS High

RDS to VCC, VCC > VCCSEL

ROL

Drive RDS Low

RDS to GND, VCCDES > VCC

0.5

1.0

tDH

Drive High Delay

CDRIVE = 1 nF, VCC tRISE < 100 ns

5.0

tDL

Drive Low Delay

CDRIVE = 1 nF, VCC tFALL < 100 ns

0.5

TDISABLE

Shutdown Temperature

165

C

THYST

Thermal Hysteresis

C

2. Operating Characteristics are over Standard Operating Conditions unless otherwise specified.

3. The hysteresis defines the maximum level of acceptable disturbance on VCC during switching. It is recommended that the VCC source

impedance be kept below 0.15 W to ensure the switching disturbance remains below the hysteresis during select/deselect transitions.

4. Ground pin current consists of controller current (0.2 mA) and regulator current when selected.

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