TPS7A9101DSKR datasheet(5/31 Pages) TI1

Part #	TPS7A9101DSKR

Description	1-A, High-Accuracy, Low-Noise LDO Voltage Regulator

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Manufacturer	TI1 [Texas Instruments]

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5

TPS7A91

www.ti.com

SBVS282 – DECEMBER 2016

Product Folder Links: TPS7A91

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(1)

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

(2)

The device is not tested under conditions where VIN > VOUT + 2.5 V and IOUT = 1 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 under test.

6.5 Electrical Characteristics

over operating temperature range (TJ = –40°C to +125°C), 1.4 V ≤ VIN ≤ 6.5 V, VOUT(NOM) = 0.8 V, IOUT = 5 mA, VEN = 1.4 V,

CIN = COUT = 10 μF, CNR/SS = CFF = 0 nF, SS_CTRL = GND, and PG pin pulled up to VIN with 100 kΩ (unless otherwise

noted); typical values are at TJ = 25°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input supply voltage range

1.4

6.5

V

VREF

Reference voltage

0.8

V

VUVLO

Input supply UVLO

VIN rising

1.31

1.39

V

VHYS(UVLO)

Input supply UVLO hysteresis

290

mV

VOUT

Output voltage range

0.8

5.2

V

Output voltage accuracy(1)

1.4 V

≤ VIN ≤ 6.5 V, 5 mA ≤ IOUT ≤ 1 A

–1.0%

1.0%

ΔVOUT(ΔVIN)

Line regulation

0.005

%/V

ΔVOUT(ΔIOUT)

Load regulation(2)

5 mA

≤ IOUT ≤ 1 A

0.02

%/A

VDO

Dropout voltage

VIN ≥ 1.4 V, IOUT = 1 A, VFB = 0.8 V – 3%

200

mV

ILIM

Output current limit

VOUT forced at 0.9 × VOUT(NOM),

VIN = VOUT(NOM) + 300 mV

1.5

1.7

1.9

A

IGND

GND pin current

VIN = 6.5 V, IOUT = 5 mA

2.1

3.5

mA

VIN = 1.4 V, IOUT = 1 A

4

ISDN

Shutdown GND pin current

PG = (open), VIN = 6.5 V, VEN = 0.4 V

0.1

15

µA

IEN

EN pin current

VIN = 6.5 V, 0 V ≤ VEN ≤ 6.5 V

–0.2

0.2

µA

VIL(EN)

EN pin low-level input voltage

(device disabled)

0

0.4

V

VIH(EN)

EN pin high-level input voltage

(device enabled)

1.1

6.5

V

ISS_CTRL

SS_CTRL pin current

VIN = 6.5 V, 0 V ≤ VSS_CTRL ≤ 6.5 V

–0.2

0.2

µA

VIT(PG)

PG pin threshold

For PG transitioning low with falling VOUT, expressed as

a percentage of VOUT(NOM)

82%

88.9%

93%

VHYS(PG)

PG pin hysteresis

For PG transitioning high with rising VOUT, expressed as

a percentage of VOUT(NOM)

1%

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), VPG = 6.5 V

1

µA

INR/SS

NR/SS pin charging current

VNR/SS = GND, VSS_CTRL = GND

4.0

6.2

9.0

µA

VNR/SS = GND, VSS_CTRL = VIN

65

100

150

IFB

FB pin leakage current

VIN = 6.5 V, VFB = 0.8 V

–100

100

nA

PSRR

Power-supply ripple rejection

f = 500 kHz, VIN = 3.8 V, VOUT(NOM) = 3.3 V,

IOUT = 750mA, CNR/SS = 10 nF, CFF = 10 nF

39

dB

Vn

Output noise voltage

BW = 10 Hz to 100 kHz, VIN = 1.8 V, VOUT(NOM) = 0.8 V,

IOUT = 1.0 A, CNR/SS = 10 nF, CFF = 10 nF

4.7

µVRMS

Noise spectral density

f = 10 kHz, VIN = 1.8 V, VOUT(NOM) = 0.8 V,

IOUT = 1.0 A, CNR/SS = 10 nF, CFF = 10 nF

13

nV/

√Hz

Rdiss

Output active discharge

resistance

VEN = GND

250

Ω

Tsd

Thermal shutdown temperature

Shutdown, temperature increasing

160

°C

Reset, temperature decreasing

140

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