Datasheet > SLTS060A

SLTS060A

更新时间： 2024-10-28 12:50:39

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关
页数	文件大小	规格书
3页	475K
描述
12V 2 Amp Positive Step-Down Integrated Switching Regulator

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SLTS060A 数据手册

PT78ST200 Series

12V 2 Amp Positive Step-Down

Integrated Switching Regulator

SLTS060A

(Revised 6/30/2000)

• High Efficiency > 87%

• Wide Input Range

The Power Trends’ PT78ST200 is

a series of 3-terminal Integrated

Switching Regulators (ISRs) that can

supply up to 24 watts of regulated 12V

power. With a surge capability of 3

Amps and an output voltage that is

laser trimmed, it is ideal for inductive

load applications such as disk drive

motors.

• Aluminum Heatsink for

Applications with Airflow

• Self-Contained Inductor

• Short Circuit Protection

• Over-Temperature Protection

• Pin Compatible with Linear

3-Terminal, “78” Series Regulators

• Small Footprint

Pin-Out Information

Ordering Information

PT78ST2 XX

Pin Function

V_in

GND

V_out

Standard Application

Output Voltage

Package Suffix

12 = 12.0 Volts

V = Vertical Mount

Vin

Vout

PT78ST200

COM

C₁= Optional 1µF ceramic

C₂= Required 100µF electrolytic

Pkg Style 600

Specifications

PT78ST200 SERIES

Characteristics

(T_a= 25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

Output Current

I_o

Over V_inrange

With forced air cooling

0.1*

—

2.0

Short Circuit Current

I_sc

V_in= V_inmin

—

5.0

—

Apk

Input Voltage Range

V_in

0.1 ≤ I_o≤ 2.0A

Output Voltage Tolerance

∆V_o

Over V_inrange, I_o= 2.0A

T_a= 0°C to +60°C

—

1.0

2.0

%Vo

Line Regulation

Load Regulation

V_oRipple/Noise

Reg_line

Regload

V_n

Over V_inrange

—

0.4

0.2

0.8

0.4

—

%V_o

mV_pp

0.1 ≤ I_o≤ 2.0A

V_in=17V, I_o=2.0A, V_o=12V

120

Transient Response

(with 100µF output cap)

t_tr

50% load change

V_oover/undershoot

—

100

5.0

—

µSec

%V_o

Efficiency

V_in=17V, I_o=2.0A

Over V_inand I_o

—

ranges0.95

-40

1.0

—

Switching Frequency

ƒ_o

T_a

1.05

+65

MHz

°C

Absolute Maximum

Operating Temperature Range

Recommended Operating

Temperature Range

T_a

Free Air Convection, (40-60LFM)

at V_in= 24V, I_o=2A

-40

—

+55**

°C

Thermal Resistance

Storage Temperature

Mechanical Shock

θja

T_s

—

Free Air Convection, (40-60LFM)

—

-40

—

°C/W

°C

—

+125

—

Per Mil-STD-883D, Method 2002.3

500

G’s

Mechanical Vibration

Per Mil-STD-883D, Method 2007.2,

20-2000 Hz, Soldered in a PC board

—

G’s

Weight

—

Grams

*ISR will operate down to no load with reduced specifications.

**See Thermal Derating chart.

Note: The PT78ST200 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.

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

12 3

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