LP5907 datasheet(7/48 Pages) TI1

7 / 48 page

LP5907

www.ti.com

SNVS798N – APRIL 2012 – REVISED APRIL 2018

Product Folder Links: LP5907

Submit Documentation Feedback

Electrical Characteristics (continued)

VIN = VOUT(NOM) + 1 V, VEN = 1.2 V, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF (unless otherwise noted)

(1)(2)(3)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(9)

This specification is verified by design.

(10) There is a 1-MΩ resistor between EN and ground on the device.

PSRR

Power-supply rejection ratio(9)

f = 100 Hz, IOUT = 20 mA

f = 1 kHz, IOUT = 20 mA

f = 10 kHz, IOUT = 20 mA

f = 100 kHz, IOUT = 20 mA

Output noise voltage(9)

BW = 10 Hz to 100 kHz

IOUT = 1 mA

µVRMS

IOUT = 250 mA

6.5

RAD

Output automatic discharge

pulldown resistance

VEN < VIL (output disabled)

230

TSD

Thermal shutdown

TJ rising

160

°C

Thermal hysteresis

TJ falling from shutdown

LOGIC INPUT THRESHOLDS

VIL

Low input threshold

VIN = 2.2 V to 5.5 V,

VEN falling until the output is disabled

0.4

VIH

High input threshold

VIN = 2.2 V to 5.5 V

VEN rising until the output is enabled

1.2

IEN

Input current at EN pin(10)

VEN = 5.5 V and VIN = 5.5 V

5.5

µA

VEN = 0 V and VIN = 5.5 V

0.001

TRANSIENT CHARACTERISTICS

ΔVOUT

Line transient(9)

VIN = (VOUT(NOM) + 1 V) to

(VOUT(NOM) + 1.6 V) in 30 µs

–1

VIN = (VOUT(NOM) + 1.6 V) to

(VOUT(NOM) + 1.6 V) in 30 µs

Load transient(9)

IOUT = 1 mA to 250 mA in 10 µs

–40

IOUT = 250 mA to 1 mA in 10 µs

Overshoot on start-up(9)

Stated as a percentage of VOUT(NOM)

Overshoot on start-up with EN(9)

Stated as a percentage of VOUT(NOM), VIN =

VOUT + 1 V to 5.5 V, 0.7 µF < COUT < 10 µF,

0 mA < IOUT < 250 mA, EN rising until the

output is enabled

tON

Turnon time

From VEN > VIH to VOUT = 95% of VOUT(NOM),

TA = 25°C

150

µs

(1)

The minimum capacitance should be greater than 0.5 µF over the full range of operating conditions. The capacitor tolerance should be

30% or better over the full temperature range. The full range of operating conditions for the capacitor in the application must be

considered during device selection to ensure this minimum capacitance specification is met. X7R capacitors are recommended however

capacitor types X5R, Y5V and Z5U may be used with consideration of the application and conditions.

(2)

This specification is verified by design.

6.6 Output and Input Capacitors

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN(1)

TYP

MAX

UNIT

CIN

Input capacitance(2)

Capacitance for stability

0.7

µF

COUT

Output capacitance(2)

0.7

µF

ESR

Output/Input capacitance(2)

500

mΩ

LP5907 датащи(PDF) 7 Page - Texas Instruments

LP5907 датащи(HTML) 7 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

датащи скачать

ссылки URL