PT5071N

更新时间： 2024-11-10 23:29:35

品牌	Logo	应用领域
德州仪器 - TI		模拟IC
页数	文件大小	规格书
3页	132K
描述
Analog IC

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PT5071N 数据手册

PT5071—12V

1.5 Amp, 12V Step-Up/Step-Down

Integrated Switching Regulator

SLTS139

(Revised 2/7/2001)

Features

Description

• Single-Device:

+12V Output, 7-16V Input

• 84% Efficiency

• 14-Pin Excalibur™ Package

• Output Current Limit

• Adjustable Output Voltage

The PT5071 is a 1.5-ampere rated step-up/

step-down Integrated Switching Regulator

(ISR) that provides a tightly regulated 12V

output voltage from a 7V to 16V variable

input source. This high-performance ISR has

applications in systems where the input

• Adjustable Undervoltage Lockout voltage straddles the desired 12V output.

• Solderable Copper Case

The regulator has an adjustable output

voltage and input start-up threshold, and a

standby function for power conservation.

Pin-Out Information

Pin Function

Ordering Information

PT 5071¨ = +12 Volts

N/C

Standard Application

UVLO Adj

STBY*

V_in

PT Series Suffix

Case/Pin

Configuration

(PT1234X)

U V_{A D J}

UVadj

V_in

V _IN

V _{O U T}

Vertical Through-Hole

Horizontal Through-Hole

Horizontal Surface Mount

4-6

11-13

V_in

V_IN

V_OUT

PT5071

GND

V_out

V₀adj

STBY*

GND

7-10

(For dimensions and PC board layout,

see Package Styles 1360 and 1370.)

C ₁

C ₂

S T B Y

G N D

V_out

For Inhibit pin:

Open = output enabled

Ground = output disabled

V_out

C₁, C₂= Required 100µF electrolytic (See footnotes)

V_outAdjust

Specifications

Characteristics

PT5071

(T = 25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

OutputCurrent

CurrentLimit

Input Voltage Range

OutputVoltageTolerance

I_o

OverV_inRange

V_in= 12V

0.1A≤ I_o≤I_omax

0.1 ⁽¹⁾

—

7.0

—

4.0

—

1.5

I_lim

V_in

∆V_o

16.0

V_in=12V, I_o=I_omax

±1.0

–40°C ≤ T_a≤ +85°C

Output Voltage Adjust Range

Line Regulation

Load Regulation

V_oadj

Reg_line

Reg_load

V_n

—

Over V_inRange, I_o=I_omax

V_in=12V, 0.1 ≤ I_o≤ I_omax

V_in=12V, I_o=I_omax

±0.5

±2.0

Vo Ripple/Noise

±3.0

Transient Response

with C₂= 100µF

t_tr

Load step from 50% to 100% I_omax, V_in=12V

V_oover/undershoot

—

200

1.0

—

µSec

%V_o

V_os

Efficiency

SwitchingFrequency

V_in=12V, V_o=12V, I_o=1.5A

—

550

—

kHz

ƒ_o

OverV_inRange

0.1A ≤ I_o≤ I_omax

AbsoluteMaximum

Over V_inrange

–40 ⁽²⁾

—

+85 ⁽³⁾

°C

Operating Temperature Range

Storage Temperature

Mechanical Shock

—

–40

—

TBD

+125

—

°C

G’s

Per Mil-STD-883D, Method 2002.3 , 1 msec,

Half Sine, mounted to a fixture

Mechanical Vibration

Per Mil-STD-883D, Method 2007.2,

20-2000 Hz, Soldered in a PC board

—

TBD

—

G’s

grams

Weight

—

Notes: 1. The regulator will operate down to no load with reduced specifications.

2. For operating temperatures below 0°C, it is recommended that tantalum capacitors be used at both the input and output.

3. See SOA curves, or contact the factory for derating guidelines.

Input/Output Capacitors: The PT5071 regulator requires a 100µF electrolytic capacitor at the input and output for proper operation in all applications. The ESR

(equivalent series resistance) of both capacitors must be less than 250mΩ @100kHz. In addition, C₁and C₂must be rated to a minimum of 300mArms ripple current.

For technical support and more information, see inside back cover or visit www.ti.com/powertrends

12 3

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PT5071N 替代型号

型号	品牌	替代类型	描述	数据表
PT5071A	TI	完全替代	Analog IC

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