TPS65530RSLT datasheet(9/30 Pages) TI

Part #	TPS65530RSLT

Description	FULLY INTEGRATED 8-CHANNEL DC/DC CONVERTER FOR DIGITAL STILL CAMERAS

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TPS65530

SLVS744B – OCTOBER 2007 – REVISED NOVEMBER 2007

ELECTRICAL CHARACTERISTICS (continued)

0

°C ≤ T

J ≤ 125°C, 1.8 V ≤ VCC2 ≤ 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP(1)

MAX

UNIT

CH8

TA = 25°C,

1.8

5.5

Start up (XSLEEP from AGND to VCC2)

Supply voltage(7)

V

XSLEEP = VCC2

1.5

5.5

VPS

Output voltage(7)

3.3

5.5

V

XSLEEP = H, ENAFE = AGND, No load

1.23

1.25

1.27

V

VFB8

FB8 reference voltage

CH8 operation mode: PFM mode, No load

1.2

1.25

1.35

V

Fixed ON time at PFM mode

VCC2 = 3.6 V

250

ns

Max duty cycle

76

85

92

%

Source impedance

VPS = 5 V, ISW = 100 mA

5

7.5

SW8LD

Ω

driver

Sink impedance

VPS = 5 V, ISW = –100 mA

1

1.5

Source impedance

VPS = 5 V, ISW = 100 mA

10

15

SW8HD

Ω

driver

Sink impedance

VPS = 5 V, ISW = –100 mA

5

7.5

Overvoltage protection threshold

1.30

1.56

1.80

V

(sensing at FB8 pin)

FBG7/8 FET ON resistance

VPS = 5 V, XSLEEP = VCC2

0.6

k

Ω

FBG7/8 leakage current

XSLEEP = AGND, ENAFE = AGND

1

µA

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