TPS62320 datasheet(3/31 Pages) TI

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DISSIPATION RATINGS

(1)

ELECTRICAL CHARACTERISTICS

TPS62300, TPS62301, TPS62302

TPS62303, TPS62305, TPS62311

TPS62313, TPS62320, TPS62321

SLVS528B – JULY 2004 – REVISED JUNE 2005

POWER RATING

DERATING FACTOR

PACKAGE

RθJA

FOR TA≤ 25°C

ABOVE TA = 25°C

DRC

°C/W

2050 mW

21 mW/

°C

YZD

250

°C/W

400 mW

4 mW/

°C

YED

250

°C/W

400 mW

4 mW/

°C

(1)

Maximum power dissipation is a function of TJ(max), θJA and TA. The maximum allowable power dissipation at any allowable ambient

temperature is PD = [TJ(max)-TA] / θJA

I = 3.6 V, VO = 1.6 V, EN = VI, MODE/SYNC = GND, L = 1 µH, CO = 10 µF, TA = -40°C to 85°C, typical values are at

A = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

Input voltage range

2.7

TPS6230x

IO = 0 mA. PFM mode enabled, device not switching

105

µA

TPS6232x

Operating

TPS6231x

IO = 0 mA. PFM mode enabled, device not switching

120

µA

quiescent

current

TPS6230x

IO = 0 mA. Switching with no load

TPS6231x

3.6

(MODE/SYNC = VIN)

TPS6232x

I(SD)

Shutdown current

EN = GND

0.1

µA

TPS6230x

2.40

2.55

Undervoltage

TPS6232x

V(UVLO)

lockout threshold

TPS6231x

2.00

2.20

ENABLE, MODE/SYNC

V(EN)

EN high-level input voltage

1.2

V(MODE/SYNC)

MODE/SYNC high-level input voltage

1.3

V(EN),

EN, MODE/SYNC low-level input

0.4

V(MODE/SYNC)

voltage

I(EN),

EN, MODE/SYNC input leakage

EN, MODE/SYNC = GND or VIN

0.01

µA

I(MODE/SYNC)

current

POWER SWITCH

VI = V(GS) = 3.6 V

420

750

Ω

rDS(on)

P-channel MOSFET on resistance

VI = V(GS) = 2.8 V

520

1000

Ω

Ilkg(PMOS)

P-channel leakage current

V(DS) = 6 V

µA

VI = V(GS) = 3.6 V

330

750

Ω

rDS(on)

N-channel MOSFET on resistance

VI = V(GS) = 2.8 V

400

1000

Ω

Discharge resistor for power-down

R(DIS)

Ω

sequence (TPS6232x only)

Ilkg(NMOS)

N-channel leakage current

V(DS) = 6 V

µA

P-MOS current limit

2.7 V

≤ V

I ≤ 6 V

670

780

890

N-MOS current limit - sourcing

2.7 V

≤ V

I ≤ 6 V

550

720

890

N-MOS current limit - sinking

2.7 V

≤ V

I ≤ 6 V

–460

–600

–740

Input current limit under short-circuit

VO = 0 V

390

conditions

Thermal shutdown

150

°C

Thermal shutdown hysteresis

°C

TPS62320 Datasheet(PDF) 3 Page - Texas Instruments

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