PTH12020LAH datasheet(3/27 Pages) TI

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

PTH12020W/L

SLTS208E–MAY 2003–REVISED OCTOBER 2005

over operating free-air temperature range unless otherwise noted (1)

UNIT

Vtrack

Track input

–0.3V to VI +0.3 V

Vinh

Inhibit control input

–0.3Vto7V

Operating temperature

Over VI Range

–40°C to 85°C

range

Surface temperature of module body or pins

PTH12020WAH

260°C (2)

Twave

Wave solder temperature

(5 seconds)

PTH12020WAS

235°C (2)

Treflow Solder reflow temperature Surface temperature of module body or pins

PTH12020WAZ

260°C (2)

Tso

Storage temperature

–40°C to 125°C

Mechanical shock

Per Mil-STD-883D, Method 2002.3 1 msec, 1/2 Sine, mounted

500 G

Mechanical vibration

Mil-STD-883D, Method 2007.2 20-2000 Hz

20 G

Weight

7 grams

Flammability

Meets UL 94V-O

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) During soldering of package version, do not elevate peak temperature of the module, pins or internal components above the stated

maximum.

TA =25°C, VI =12 V, VO = 3.3 V, CI = 560 µF, CO =0 µF, and Io =Iomax) (unless otherwise noted)

PTH12020W

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

60°C, 200 LFM airflow

18(1)

Output current

25°C, natural convection

18(1)

Vin

Input voltage range

Over Io range

10.8

13.2

Votol

Set-point voltage tolerance

±2(2)

%Vo

∆Regtemp

Temperature variation

–40°C<TA <85°C

±0.5

%Vo

∆Regline

Line regulation

Over Vin range

±5

∆Regload

Load regulation

Over Io range

±5

∆Regtot

Total output variation

Includes set-point, line, load, –40°C ≤ TA≤ 85°C

±3(2)

%Vo

∆Vadj

Output voltage adjust range

Over Vin range

1.2

5.5

RSET = 280 Ω,Vo = 5.0 V

95%

RSET =2.0 kΩ,Vo = 3.3 V

93%

RSET =4.32kΩ,Vo = 2.5 V

92%

Efficiency

IO =12A

RSET = 11.5 kΩ,Vo = 1.8 V

90%

RSET = 24.3 kΩ,Vo = 1.5 V

88%

RSET = open ckt., Vo = 1.2 V

86%

Vo ≤ 2.5 V

mVpp

Transient response

20 MHz bandwidth

Vo > 2.5 V

%Vo

Io trip

Over-current threshold

Reset, followed by auto-recovery

ttr

Recovery time

µSec

1 A/µs load step, 50 to

Transient response

100% Iomax,Cout =330 µF

∆Vtr

Vo over/undershoot

∆Vomargin

Margin up/down adjust

±5%

IIL margin

Margin input current (pins 9 /10)

Pin to GND

–8 (3)

µA

IIL track

Track input current (pin 8)

Pin to GND

–0.13 (3)

dVtrack/dt

Track slew rate capability

Cout≤ Cout(max)

1V/ms

(1) See SOA curves or consult factory for appropriate derating.

(2) The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a

tolerance of 1%, with 100 ppm/°C or better temperature stability.

(3) A small low-leakage (<100 nA) MOSFET is recommended to control this pin. The open-circuit voltage is less than 1 Vdc.

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