TPS62021 datasheet(3/18 Pages) TI

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ELECTRICAL CHARACTERISTICS

PIN ASSIGNMENTS

VIN

GND

PGND

MODE

DGQ PACKAGE

(TOP VIEW)

NOTE: The PowerPAD must be connected to GND.

VIN

GND

PGND

MODE

DRC PACKAGE

(TOP VIEW)

TPS62020, TPS62021

SLVS076B – JUNE 2003 – REVISED APRIL 2004

I = 3.6 V, VO = 1.8 V, IO = 600 mA, EN = VIN, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

Input voltage range

2.5

6.0

I(Q)

Operating quiescent current

IO = 0 mA, device is not switching

µA

ISD

Shutdown supply current

EN = GND

0.1

µA

VUVLO

Under-voltage lockout threshold

1.5

2.3

ENABLE AND MODE

VEN

EN high level input voltage

1.4

VEN

EN low level input voltage

0.4

IEN

EN input bias current

EN = GND or VIN

0.01

1.0

µA

V(MODE)

MODE high level input voltage

1.4

V(MODE)

MODE low level input voltage

0.4

I(MODE)

MODE input bias current

MODE = GND or VIN

0.01

1.0

µA

POWER SWITCH

P-channel MOSFET on-resistance

VI = VGS = 3.6 V

115

210

Ω

rDS(ON)

P-channel MOSFET on-resistance

VI = VGS = 2.5 V

145

270

Ω

Ilkg(P)

P-channel leakage current

VDS = 6.0 V

µA

N-channel MOSFET on-resistance

VI = VGS = 3.6 V

200

Ω

rDS(ON)

N-channel MOSFET on-resistance

VI = VGS = 2.5 V

115

280

Ω

IIkg(N)

N-channel leakage current

VDS = 6.0 V

µA

P-channel current limit

2.5 V < VI < 6.0 V

0.9

1.1

1.3

Thermal shutdown

150

°C

OSCILLATOR

VFB= 0.5 V

1.25

1.5

MHz

Oscillator frequency

VFB = 0 V

625

kHz

OUTPUT

Adjustable output voltage range

0.7

VIN

Vref

Reference voltage

0.5

VI = 2.5 V to 6.0 V; IO = 0 mA

VFB

Feedback voltage

VI = 2.5 V to 6.0 V; 0 mA ≤ IO ≤ 600 mA

-3%

Line regulation(1)

VI = VO + 0.5 V (min 2.5 V) to 6.0 V, IO = 10 mA

%/V

Load regulation(1)

IO = 10 mA to 1200 mA

%/mA

Leakage current into SW pin

VI > VO, 0 V≤ VSW ≤ VI

0.1

µA

IIkg(SW)

Reverse leakage current into pin SW

VI = open; EN = GND; VSW = 6.0 V

0.1

µA

Short circuit switching frequency

VFB = 0 V

625

kHz

(1)

The line and load regulations are digitally controlled to assure an output voltage accuracy of

±3%.

TPS62021 Datasheet(PDF) 3 Page - Texas Instruments

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