LP3910 datasheet(13/72 Pages) TI1

13 / 72 page

LP3910

www.ti.com

SNVS481M – NOVEMBER 2006 – REVISED DECEMBER 2015

7.16 Electrical Characteristics: Buck2 Converter

Unless otherwise noted, VIN3 = 3.6 V, VOUT = default value, CVIN3 = 10 µF, CSW1 = 10 µF, LSW2 = 2.2 µH. Typical limits apply

for TJ = 25°C; minimum and maximum limits apply for TJ = 0°C to 125°C, unless otherwise specified. Modulation mode is

PWM mode with automatic switch to PFM at light loads.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN3

Input voltage

2.7

Output voltage programming

VOUT Range

1.8 V – 3.3 V in 100-mV steps

0.8

range

IOUT = 200 mA including line and

Static output voltage tolerance

–3%

load regulation

ΔVOUT

IOUT = 10 mA

Line regulation

0.2

%/V

VIN3 = 2.5 V − VDD

Load regulation

100 mA < IOUT < 300 mA

0.002

%/mA

Continuous output current

600

IOUT

Peak output current limit

850

1000

1150

IPFM

Maximum ILOAD, PFM mode

IOUT = 0 mA

Quiescent current

µA

Buck2 disabled

FOSC

Internal oscillator frequency

PWM mode

MHz

Peak efficiency

90%

TON

Turnon time

To 95% level(1)

(1)

This specification is ensured by design..

7.17 Electrical Characteristics: Buck-Boost

Unless otherwise noted, VIN4 = 3.6 V, CVIN4 = 10 µF, CBB = 22 µF, LBB = 2.2 µH. Typical limits apply for TJ = 25°C; minimum

and maximum limits apply for TJ = 0°C to 125°C, unless otherwise specified. Modulation mode is PWM mode with automatic

switch to PFM at light loads.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IOUTMAX = 1000 mA

2.9

5.7

VIN4

Input voltage

IOUTMAX = 800 mA

2.7

5.7

Output voltage programming

TJ = 25°C

VOUT Range

1.8

3.3

range

1.80 V to 3.30 V in 50-mV steps

IOUT = 0 mA to 1000 mA including

Static output voltage tolerance

–4%

line and load regulation

ΔVOUT

Line regulation

IOUT = 10 mA

0.2

%/V

Load regulation

100 mA < IOUT < 1000 mA

0.0016

%/mA

Continuous output current

1000

IOUT

VOUT = 3.3 V

Peak inductor current limit

1800

2400

1-A load at VIN = 2.7 V

IPFM

Maximum ILOAD, PFM mode

IOUT = 0 mA PFM no switching

Quiescent current

µA

Buck-Boost disabled

FOSC

Internal oscillator frequency

PWM mode

MHz

Peak efficiency

93%

TON

Turnon time

To 95% level(1)

(1)

This specification is ensured by design.

Submit Documentation Feedback

Product Folder Links: LP3910

LP3910 Datasheet(PDF) 13 Page - Texas Instruments

LP3910 Datasheet(HTML) 13 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

Datasheet Download

Link URL