TPS62590 datasheet(5/26 Pages) TI1

5 / 26 page

TPS62590

www.ti.com

SLVS897C – JANUARY 2009 – REVISED DECEMBER 2015

6.5 Electrical Characteristics

Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply

for condition VIN = EN = 3.6 V. External components CIN = 10 μF 0603, COUT = 10 μF 0603, L = 2.2 μH, refer to parameter

measurement information.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY

VIN

Input voltage range

2.5

5.5

VIN 2.7 V to 5.5 V

1000

IOUT

Output current

VIN 2.5 V to 2.7 V

600

IOUT = 0 mA, PFM mode enabled

(MODE = GND) device not switching,

μA

see (1)

Operating quiescent current

IOUT = 0 mA, switching with no load

(MODE = VIN) PWM operation,

3.8

VOUT = 1.8 V, VIN = 3 V

ISD

Shutdown current

EN = GND

0.5

μA

Falling

1.85

UVLO

Undervoltage lockout threshold

Rising

1.95

ENABLE, MODE

High level input voltage, EN,

VIH

2.5 V

≤ VIN ≤ 5.5 V

VIN

MODE

Low level input voltage, EN,

VIL

2.5 V

≤ VIN ≤ 5.5 V

0.4

MODE

IIN

Input bias current, EN, MODE

EN, MODE = GND or VIN

0.01

μA

POWER SWITCH

High side MOSFET on-resistance

250

RDS(on)

VIN = VGS = 3.6 V, TA = 25°C

Ω

Low side MOSFET on-resistance

190

Forward current limit MOSFET

ILIMF

VIN = VGS = 3.6 V

1.19

1.4

1.68

high side and low side

Thermal shutdown

Increasing junction temperature

140

TSD

°C

Thermal shutdown hysteresis

Decreasing junction temperature

OSCILLATOR

fSW

Oscillator frequency

2.5 V

≤ VIN ≤ 5.5 V

2.25

MHz

OUTPUT

Adjustable output voltage range

0.75

VREF

Reference voltage

600

MODE = VIN, PWM operation,

VFB(PWM)

Feedback voltage

–2.5%

2.5%

2.5 V

≤ VIN ≤ 5.5 V, see

(2)

MODE = GND, device in PFM mode,

VFB(PFM)

Feedback voltage PFM mode

+1% voltage positioning active, see (1)

Load regulation

–1

%/A

Time from active EN to reach 95% of

tStart Up

Start-up time

500

μs

VOUT

tRamp

VOUT ramp-up time

Time to ramp from 5% to 95% of VOUT

250

μs

VIN = 3.6 V, VIN = VOUT = VSW, EN =

Ilkg

Leakage current into SW pin

GND,

0.1

μA

see (3)

(1)

In PFM mode, the internal reference voltage is set to typical 1.01 × VREF . See the parameter measurement information.

(2)

For VIN = VOUT + 1 V.

(3)

In fixed output voltage versions, the internal resistor divider network is disconnected from FB pin.

Submit Documentation Feedback

Product Folder Links: TPS62590

TPS62590 Datasheet(PDF) 5 Page - Texas Instruments

TPS62590 Datasheet(HTML) 5 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Datasheet Download

Link URL