PT6303B

更新时间： 2024-11-14 22:44:15

品牌	Logo	应用领域
德州仪器 - TI		稳压器电源电路开关局域网
页数	文件大小	规格书
8页	188K
描述
3 AMP ADJUSTABLE POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATORS

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PT6303B 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	SFM
包装说明：	HORIZONTAL SMT, SIP-12	针数：	12
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.74	Is Samacsys：	N
模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE	控制模式：	VOLTAGE-MODE
最大输入电压：	26 V	最小输入电压：	7 V
JESD-30 代码：	R-XSFM-F12	最大负载调整率：	0.5%
功能数量：	1	输出次数：	1
端子数量：	12	最高工作温度：	60 °C
最低工作温度：	-40 °C	最大输出电流：	3 A
标称输出电压：	3.3 V	封装主体材料：	UNSPECIFIED
封装等效代码：	SMSIP12H,.7TB	封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	子类别：	Switching Regulator or Controllers
表面贴装：	YES	最大切换频率：	550 kHz
技术：	HYBRID	温度等级：	OTHER
端子形式：	FLAT	端子节距：	2.54 mm
端子位置：	SINGLE	处于峰值回流温度下的最长时间：	NOT SPECIFIED
微调/可调输出：	YES	Base Number Matches：	1

PT6303B 数据手册

PT6300 Series

3 Amp Adjustable Positive Step-down

Integrated Sw itching Regulators

SLTS031B

(Revised 9/30/2000)

•

90% Efficiency

Switching Regulators (ISRs) designed

to meet the on-board power conversion

needs of battery powered or other

equipment requiring high efficiency and

small size. This high performance ISR

family offers a unique combination of

features combining 90% typical effi-

ciency with open-collector on/off

control and adjustable output voltage.

Quiescent current in the shutdown

mode is typically less than 100µA.

Adjustable Output Voltage

Internal Short Circuit Protection

Over-Temperature Protection

On/Off Control (Ground Off)

Small SIP Footprint

Wide Input Range

The PT6300 Series is a line of

High-Performance 3 Amp, 12-Pin SIP

(Single In-line Package) Integrated

Pin-Out Information

Ordering Information

PT6302¨ = +5 Volts

PT6303¨ = +3.3 Volts

PT6304¨ = +12 Volts

PT6314¨ = +1.5Volts

PT Series Suffix

Case/Pin

Configuration

(PT1234X)

Pin Function

Inhibit

(30V max)

Vertical Through-Hole

V_in

Standard Application

Horizontal Through-Hole

Horizontal Surface Mount

V_in

V_OADJ

V_in

V_IN

V_OUT

2,3,4

9,10,11

GND

V_out

PT6300

Pkg Style 200

5,6,7,8

INH

COM

C₁= Optional 1µF ceramic

C₂= Required 100µF electrolytic

Q₁= NFET

V_out

V_outAdj ⁽⁵⁾

(1)

Specifications

PT6300 SERIES

Characteristics

(T_a=25

°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

Output Current

Short Circuit Current

I_o

I_sc

V_in

Over V_inrange

V_in= V_o+ 5V

0.1 ≤ I_o≤ 3.0 A

0.1 ⁽²⁾

—

5.0

3.0

—

Apk

Input Voltage Range

(Note: inhibit function cannot

be used above 30V.)

V_o= 12V

V_o= 5.0V

V_o= 3.3V

V_o= 1.5V

—

30/38 ⁽³⁾

(3)

30/38

9.0

Output Voltage Tolerance

∆V_o

Over V_inRange, I_o= 3.0 A

T_a= 0°C to +60°C

—

1.0

2.0

%V_o

Line Regulation

Load Regulation

V_oRipple/Noise

Reg_line

Reg_load

V_n

Over V_inrange

0.1 ≤ I_o≤ 3.0 A

—

0.25

0.5

—

%V_o

V_in= V_inmin, I_o= 3.0 A

Transient Response

with C_o= 100µF

t_tr

50% load change

—

100

200

—

µSec

%V_o

V_os

V_oover/undershoot

5.0

Efficiency

V_in=16V, I_o= 0.5 A,

V_in=9V, I_o= 0.5 A,

V_in=9V, I_o=0.5A,

V_o= 12V

V_o= 5.0V

V_o= 3.3V

V_o= 1.5V

—

Switching Frequency

ƒ_o

Over V_inand I_oranges,

V_o= 12V

V_o= 3.3V/5V

V_o= 1.5V

600

400

350

750

500

450

900

600

550

kHz

Shutdown Current

Quiescent Current

I_sc

I_nl

V_in= 15V

I_o= 0A, V_in=10V

—

100

—

µA

(4)

Absolute Maximum

Operating Temperature Range

T_a

Over V_inrange

-40

—

+85

°C

Thermal Resistance

Storage Temperature

Mechanical Shock

θ_ja

Free Air Convection (40-60LFM)

—

°C/W

T_s

-40

+125

—

°C

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

Half Sine, mounted to a fixture

—

500

G’s

Mechanical Vibration

Weight

Per Mil-STD-883D, Method 2007.2,

20-2000 Hz,Soldered in a PC board

—

G’s

—

6.5

grams

Notes: (1) The PT6300 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.

(2) The ISR will operate to no load with reduced specifications.

(3) Input voltage cannot exceed 30V when the inhibit function is used.

(4) See Thermal Derating charts.

(5) Consult the related application note for guidance on adjusting the output voltage.

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

12 3 4 5 6 7 8

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