FDG326P datasheet(4/29 Pages) TI

4 / 29 page

TPS75003-EP

SGLS311A

– DECEMBER 2006 – REVISED MARCH 2011

www.ti.com

ELECTRICAL CHARACTERISTICS

VEN1 = VIN1, VEN2 = VIN2, VEN3 = VIN3, VIN1 = VIN2 = 2.2 V, VIN3 = 3 V, VOUT3 = 2.5V, COUT1 = COUT2 = 47 μF, COUT3 = 2.2 μF,

TA = -55°C to 125°C, unless otherwise noted. Typical values are at TA = 25°C.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Supply and Logic

Input voltage range (IN1, IN2,

VINX

2.2

6.5

IN3)(1)

Quiescent current, IQ = IDGND +

IOUT1 = IOUT2 = IOUT3= 0 mA

150

μA

IAGND

ISHDN

Shutdown supply current

VEN1 = VEN2 = VEN3 = 0 V

0.05

μA

TA = 25°C

1.4

Enable high, enabled

VIH1, 2

(EN1, EN2)

TA = Full Range

1.45

TA = 25°C

1.14

VIH3

Enable High, enabled (EN3)

TA = Full Range

1.2

Enable low, shutdown

VILX

0.3

(EN1, EN2, EN3)

Enable pin current (EN1, EN2,

IENX

0.01

0.5

μA

EN3)

Buck Controllers 1 and 2

VOUT1,2

Adjustable output voltage Range(2)

VFBX

VINX

VFB1,2

Feedback voltage (FB1, FB2)

1.22

Feedback voltage accuracy(1)

±2%

(FB1, FB2)

IFB1,2

Current into FB1, FB2 pins

0.01

0.5

μA

TA = 25°C

120

Reference voltage for current

VIS1,2

100

sense

TA = Full Range

125

IIS1,2

Current into IS1, IS2 pins

0.01

0.5

μA

Measured with the circuit in Figure 2,

ΔVOUT%/ΔVIN

Line regulation(1)

0.1

% / V

VOUT + 0.5 V ≤ VIN ≤ 6.5 V

Measured with the circuit in Figure 2,

ΔVOUT%/ΔIOUT

Load regulation

0.6

% / A

30 mA

≤ I OUT ≤ 2 A

Measured with the circuit in Figure 2,

n 1,2

Efficiency(3)

94%

IOUT = 1 A

Measured with the circuit in Figure 2,

tSTR1,2

Startup time(3)

RL = 6 Ω, COUT = 100 μF, CSS = 2.2

VIN1,2 > 2.5 V

Gate driver P-Channel and

RDS,ON1,2

Ω

N-Channel MOSFET on-resistance V

IN1,2 = 2.2 V

Gate Driver P-Channel and

ISW1,2

100

N-Channel MOSFET drive current

tON

Minimum on time

1.36

1.55

1.84

μs

tOFF

Minimum off time

0.44

0.65

0.86

μs

(1)

To be in regulation, minimum VIN1 (or VIN2) must be greater than VOUT1,NOM (or VOUT2,NOM) by an amount determined by external

components. Minimum VIN3 = VOUT3 + VDO or 2.2 V, whichever is greater.

(2)

Maximum VOUT is dependent on external components and will be less than VIN. Parameter is not production tested.

(3)

Depends on external components.

Product Folder Link(s): TPS75003-EP

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