TDA3672 datasheet(5/16 Pages) PHILIPS

Il numero della parte	TDA3672

Spiegazioni elettronici	Very low dropout voltage/quiescent current 3.0 V voltage regulator with enable

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Produttore elettronici	PHILIPS [NXP Semiconductors]

Homepage	http://www.nxp.com

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5 / 16 page

2000 Apr 26

5

Philips Semiconductors

Preliminary speciﬁcation

Very low dropout voltage/quiescent current

3.0 V voltage regulator with enable

TDA3672

CHARACTERISTICS

VP = 14.4 V; Tamb =25 °C; measured in test circuit (see Fig.3); unless otherwise speciﬁed.

Notes

1. The regulator output will follow VP if VP <VREG +VREG(drop).

2. Limiting values as applicable for device type TDA3672AT: VP ≤ 45 V and −40 °C ≤ Tamb ≤ +125 °C.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply voltage: pin VP

VP

supply voltage

regulator operating; note 1

3

14.4

45

V

Iq

quiescent current

VP = 14.4 V; IREG = 0 mA;

VI(EN) =0V

−

415

µA

VP = 14.4 V; IREG = 0 mA;

VI(EN) =5V

−

15

30

µA

5.5 V

≤ V

P ≤ 22 V; IREG =10mA

−

0.2

0.5

mA

5.5 V

≤ V

P ≤ 22 V; IREG =50mA

−

1.4

2.5

mA

Enable input: pin EN

VI(EN)

enable input voltage

enable off; VREG ≤ 0.8 V

−1

−

+1.0

V

enable on; VREG ≥ 2.7 V

3.0

−

18

V

II(EN)

enable input current

VI(EN) =5V

−

0.3

−µA

Regulator output: pin REG; note 2

VREG

output voltage

7.5 V

≤ VP ≤ 22 V; IREG = 0.5 mA 2.84

3.0

3.16

V

0.5 mA

≤ I

REG ≤ 100 mA;

Tamb ≤ 125 °C

2.81

3.0

3.19

V

5.5 V

≤ V

P ≤ 45 V; IREG = 0.5 mA;

Tamb ≤ 125 °C

2.81

3.0

3.19

V

VREG(drop)

dropout voltage

VP = 2.8 V; IREG =50mA;

Tamb ≤ 85 °C

−

0.18

0.3

V

VREG(stab)

long-term output voltage

stability

−

20

−

mV/1000 h

∆VREG(line) line regulation voltage

6.5 V

≤ VP ≤ 22 V; IREG = 0.5 mA −

130

mV

6.5 V

≤ V

P ≤ 45 V; IREG = 0.5 mA

−

150

mV

∆VREG(load) load output regulation voltage 0.5 mA ≤ IREG ≤ 50 mA

−

10

50

mV

SVRR

supply voltage ripple rejection

fi = 120 Hz; Vi(ripple) = 1 V (RMS);

IREG = 0.5 mA

50

60

−

dB

IREG(crl)

current limit

VREG > 2.5 V

0.17

0.25

−

A

ILO(rp)

output leakage current at

reverse polarity input

VP = −15 V; VREG ≤ 0.3 V

−

1

500

µA

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