PT5825 datasheet(2/10 Pages) TI

2 / 10 page

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PT5820 Series

16-A 12-V Input Adjustable

Integrated Switching Regulator

Performance Specifications (Unless otherwise stated, Ta =25°C, Vin =12V, Cin =560µF, Cout =330µF, and Io =Iomax)

PT5820 Series

Characteristics

Symbols

Conditions

Min

Typ

Max

Units

Output Current

0—

Input Voltage Range

Vin

Over Io range

10.8

—

13.2

Set-Point Voltage Tolerance

Vo tol

—

±2

%Vo

Temperature Variation

∆Regtemp

–40°C <Ta < +85°C

—

±0.5

—

%Vo

Line Regulation

∆Regline

Over Vin range

—

±6

—

Load Regulation

∆Regload

Over Io range

—

±12

—

Total Output Variation

∆Regtot

Includes set-point, line, load,

——±3

%Vo

–40°C

≤ Ta ≤ +85°C

Efficiency

PT5827 (5.0V)

—

PT5821 (3.3V)

—

PT5822 (2.5V)

—

PT5823 (1.8V)

—

PT5824 (1.5V)

—

PT5825 (1.2V)

—

PT5826 (1.0V)

—

Vo Ripple (pk-pk)

20MHz bandwidth

—

mVpp

Transient Response

1A/µs load step, 50% to 100% Iomax,

ttr

Recovery Time

—

µSec

∆Vtr

Vo over/undershoot

—

Over-Current Threshold

ITRIP

Reset, followed by auto-recovery

—

Output Voltage Adjust

Vo adj

with Vo Adjust

—

±10

—

with Margin Up/Down

—

±5

—

Switching Frequency

ƒs

Over Vin and Io ranges

300

350

400

kHz

Inhibit Control (pin 2)

Referenced to GND (pins 9–13)

Input High Voltage

VIH

Vin –0.5

—

Open (1)

Input Low Voltage

VIL

–0.2

—

0.8

Input Low Current

IIL

Pin 2 to GND

—

–0.5

—

Standby Input Current

Iin standby

Pin 2 to GND

—

External Input Capacitance

Cin

560 (2)

——µF

External Output Capacitance

Cout

330 (3)

—

TBD

µF

Operating Temperature Range

Over Vin range

–40

—

+85 (4)

°C

Over-Temperature Shutdown

OTP

Center of case, auto-reset

Vo≥3.3V

—

TBD

—

°C

Vo≤2.5V

—

TBD

—

Storage Temperature

—

-40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

6.3

—

106 Hrs

50% stress, Ta =40°C, ground benign

Mechanical Shock

Mil-STD-883D, Method 2002.3

—

TBD

—

G’s

Half Sine, mounted to a fixture

Mechanical Vibration

Mil-STD-883D, Method 2007.2,

Vertical

20-2000 Hz, PCB mounted

Horizontal

—

TBD (5)

—G’s

Weight

—

grams

Flammability

—

Materials meet UL 94V-0

Notes: (1) The Inhibit control (pin 2) has an internal pull-up to 12V (Vin), and if left open-circuit the module will operate when input power is applied. A small

low-leakage (<100nA) MOSFET is recommended to control this input. See application notes for more information.

(2) A 560µF electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimumm of 1.3Arms of ripple current. For

further information, consult the related application note on capacitor selection.

(3) An external 330µF output capacitor is required for proper operation. Distributed load capacitance can be included in this value.

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

(5) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.

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