TPS7A7300_15 datasheet(4/29 Pages) TI

Part #	TPS7A7300

Description	3-A, Fast-Transient, Low-Dropout Voltage Regulator

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Manufacturer	TI [Texas Instruments]

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TPS7A7300

SBVS190D – MARCH 2012 – REVISED SEPTEMBER 2013

www.ti.com

ELECTRICAL CHARACTERISTICS

Over operating temperature range (TJ = –40°C to +125°C), 1.425 V ≤ VIN ≤ 6.5 V, VIN ≥ VOUT(TARGET) + 0.3 V or

VIN ≥ VOUT(TARGET) + 0.7 V

(1) (2), OUT connected to 50 Ω to GND(3),V

EN = 1.1 V, COUT = 10 μF, CSS = 10 nF, CFF = 0 pF (RGW

package), CFF = 220 pF (RGT package), and PG pin pulled up to VIN with 100 kΩ, 27 kΩ ≤ R2 ≤ 33 kΩ for adjustable

configuration

(4), unless otherwise noted.

Typical values are at TJ = +25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range

1.425

6.5

V

V(SS)

SS pin voltage

0.5

V

Output voltage range

Adjustable with external feedback resistors

0.9

5.0

V

Fixed with voltage setting pins

0.9

3.5

VOUT

Adjustable, 25 mA

≤ IOUT ≤ 3 A

–2.0

+2.0

Output voltage accuracy(5)(6)

%

Fixed, 25 mA

≤ IOUT ≤ 3 A

–3.0

+3.0

ΔVO(ΔVI)

Line regulation

IOUT = 25 mA

0.01

%/V

ΔVO(ΔIO)

Load regulation

25 mA

≤ IOUT ≤ 3 A

0.1

%/A

VOUT ≤ 3.3 V, IOUT = 3 A, V(FB) = GND

240

mV

V(DO)

Dropout voltage (7)

3.3 V < VOUT, IOUT = 3 A, V(FB) = GND

700

mV

VOUT forced at 0.9 × VOUT(TARGET), VIN = 3.3 V,

I(LIM)

Output current limit

3.6

A

VOUT(TARGET) = 0.9 V

Full load, IOUT = 3 A

3.7

mA

Minimum load,

4

mA

I(GND)

GND pin current

VIN = 6.5 V, VOUT(TARGET) = 0.9 V, IOUT = 25 mA

Shutdown, PG = (open),

0.1

5

μA

VIN = 6.5 V, VOUT(TARGET) = 0.9 V, V(EN) < 0.5 V

I(EN)

EN pin current

VIN = 6.5 V, V(EN) = 0 V and 6.5 V

±0.1

μA

EN pin low-level input voltage

VIL(EN)

0

0.5

V

(disable device)

EN pin high-level input voltage

VIH(EN)

1.1

6.5

V

(enable device)

VIT(PG)

PG pin threshold

For the direction PG

↓ with decreasing VOUT

0.85VOUT

0.9VOUT

0.96VOUT

V

Vhys(PG)

PG pin hysteresis

For PG

↑

0.02VOUT

V

VOL(PG)

PG pin low-level output voltage

VOUT < VIT(PG), IPG = –1 mA (current into device)

0.4

V

Ilkg(PG)

PG pin leakage current

VOUT > VIT(PG), V(PG) = 6.5 V

1

μA

I(SS)

SS pin charging current

V(SS) = GND, VIN = 3.3 V

3.5

5.1

7.2

μA

BW = 100 Hz to 100 kHz,

Vn

Output noise voltage

39.46

μVRMS

VIN = 1.5 V, VOUT = 1.2 V, IOUT = 3 A

Shutdown, temperature increasing

+160

°C

Tsd

Thermal shutdown temperature

Reset, temperature decreasing

+140

°C

TJ

Operating junction temperature

–40

+125

°C

(1)

When VOUT ≤ 3.5 V, VIN ≥ (VOUT + 0.3 V) or 1.425 V, whichever is greater; when VOUT > 3.5 V, VIN ≥ (VOUT + 0.7 V).

(2)

VOUT(TARGET) is the calculated target VOUT value from the output voltage setting pins: 50mV, 100mV, 200mV, 400mV, 800mV, and 1.6V

in fixed configuration, or the expected VOUT value set by external feedback resistors in adjustable configuration.

(3)

This 50-

Ω load is disconnected when the test conditions specify an IOUT value.

(4)

R2 is the bottom-side of the feedback resistor between the FB pin and GND. See Figure 40 for details.

(5)

When the TPS7A7300 is connected to external feedback resistors at the FB pin, external resistor tolerances are not included.

(6)

The TPS7A7300 is not tested at VOUT = 0.9 V, 2.7 V ≤ VIN ≤ 6.5 V, and 500 mA ≤ IOUT ≤ 3 A because the power dissipation is higher

than the maximum rating of the package. Also, this accuracy specification does not apply on any application condition that exceeds the

power dissipation limit of the package.

(7)

V(DO) is not defined for output voltage settings below 1.2 V.

4

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