TPS71750QDSERQ1 datasheet(3/23 Pages) TI1

No. de pieza	TPS71750QDSERQ1

Descripción Electrónicos	Low Noise, High-Bandwidth PSRR Low-Dropout 150-mA Linear Regulator

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Fabricante Electrónico	TI1 [Texas Instruments]

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TPS71750-Q1

TPS71709-Q1

TPS71745-Q1

www.ti.com

SLVSBM4A – SEPTEMBER 2012 – REVISED AUGUST 2013

ELECTRICAL CHARACTERISTICS

Over operating temperature range (TA = –40°C to 125°C), VIN = VOUT(TYP) + 0.5 V or 2.5 V, whichever is greater;

IOUT = 0.5 mA, VEN = VIN, COUT = 1 μF, CNR = 0.01 μF, unless otherwise noted. For TPS71701-Q1, VOUT = 2.8 V.

Typical values are at TA = 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range(1)

2.5

6.5

V

VFB

Internal reference (TPS71701-Q1)

0.790

0.800

0.810

V

Output voltage range (TPS717xx-Q1)

0.9

5

V

VOUT

Output voltage range (TPS71701-Q1)

0.9

6.5 – VDO

V

Output accuracy

Nominal

TA = 25°C

±2.5

mV

Output accuracy

Over VIN, IOUT,

VOUT + 0.5 V ≤ VIN ≤ 6.5 V

–30

30

mV

VOUT

(VOUT < 1 V)

Temp(2)

0 mA

≤ IOUT ≤ 150 mA

Output accuracy

Over VIN, IOUT,

VOUT + 0.5 V ≤ VIN ≤ 6.5 V

–3

3

%

(VOUT ≥ 1 V)

Temp(2)

0 mA

≤ IOUT ≤ 150 mA

VOUT(NOM) + 0.5 V ≤ VIN ≤ 6.5 V,

ΔVOUT/ ΔVIN

Line regulation (1)

125

μV/V

IOUT = 5 mA

ΔVOUT/ ΔIOUT

Load regulation

0 mA

≤ IOUT ≤ 150 mA

120

μV/mA

Dropout voltage(3)

VDO

IOUT = 150 mA

170

300

mV

(VIN = VOUT(NOM) – 0.1 V)

ICL (Fixed)

Output current limit (fixed output)

VOUT = 0.9 × VOUT(NOM)

200

325

575

mA

ICL (Adjustable)

Output current limit (TPS71701-Q1)

VOUT = 0.9 × VOUT(NOM)

200

325

575

mA

IOUT = 0.1 mA

45

80

μA

IGND

Ground pin current

IOUT = 150 mA

100

μA

VEN ≤ 0.4 V, 2.5 V ≤ VIN < 4.5 V,

0.20

1.5

μA

TA = –40°C to 125°C

Shutdown current

ISHDN

(IGND)

VEN ≤ 0.4 V, 4.5 V ≤ VIN ≤ 6.5 V,

0.90

μA

TA = –40°C to 125°C

IFB

Feedback pin current (TPS71701-Q1)

0.02

1

μA

f = 100 Hz

70

dB

f = 1 kHz

70

dB

Power-supply rejection ratio

PSRR

VIN = 3.8 V, VOUT = 2.8 V,

f = 10 kHz

67

dB

IOUT = 150 mA

f = 100 kHz

67

dB

f = 1 MHz

45

dB

CNR = none

95 × VOUT

μVRMS

(fixed output, TPS71701-Q1)

Output noise voltage

BW = 100 Hz to 100 kHz,

CNR = 0.001 μF

25 × VOUT

μVRMS

VN

VIN = 3.8 V, VOUT = 2.8 V,

CNR = 0.01 μF

12.5 × VOUT

μVRMS

IOUT = 10 mA

CNR = 0.1 μF

11.5 × VOUT

μVRMS

Startup time

0.9 V

≤ VOUT ≤ 1.6 V, CNR = 0.001 μF

0.700

ms

TSTR

VOUT = 90% VOUT(NOM),

1.6 V < VOUT < VMAX, CNR = 0.01 μF

0.160

ms

RL = 19 Ω, COUT = 1 μF

VIN ≤ 5.5 V

1.2

6.5(4)

V

VEN(HI)

Enable high (enabled)

5.5 V < VIN ≤ 6.5 V

1.25

6.5

V

VEN(LO)

Enable low (shutdown)

0

0.4

V

IEN(HI)

Enable pin current, enabled

EN = 6.5 V

0.02

1

μA

Under-voltage lockout

VIN rising

2.41

2.45

2.49

V

UVLO

Hysteresis

VIN falling

150

mV

Shutdown, temperature increasing

160

°C

TSD

Thermal shutdown temperature

Reset, temperature decreasing

140

°C

(1)

Minimum VIN = VOUT + VDO or 2.5 V, whichever is greater.

(2)

Does not include external resistor tolerances.

(3)

VDO is not measured for devices with VOUT(NOM) < 2.6 V because minimum VIN = 2.5 V.

(4)

Maximum VEN(HI) = VIN + 0.3 or 6.5 V, whichever is smaller.

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Product Folder Links: TPS71750-Q1 TPS71709-Q1 TPS71745-Q1

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