PT6121N

更新时间： 2024-11-13 22:26:11

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关输入元件
页数	文件大小	规格书
6页	513K
描述
1 AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR

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PT6121N 数据手册

For assistance or to order, call (800) 531-5782

P T 6 1 2 0 S e r i e s

SLTS081

(Revised 6/4/98)

1 AMP ADJUSTABLE LOW VOLTAGE INPUT

INTEGRATED SWITCHING REGULATOR

• Low Voltage Input (7V)

• 89% Efficiency

• Adjustable Output Voltage

• Internal Short Circuit Protection

• Over-Temperature Protection

• On/Off Control (Ground Off)

Regulators (ISRs). These ISRs are de-

signed with premium low threshold FETs

for those applications requiring very low

input/output voltage differentials such as

battery powered equipment. This high-

performance ISR family offers a unique

combination of features combining 89%

typical efficiency with open-collector on/

off control and adjustable output voltage.

Quiescent current in the shutdown mode

is less than 100µA.

The PT6120 series is a low volt-

age input (typically 7V) version of

Power Trends’ high-performance

1A, 12 pin SIP Integrated Switching

Pin-Out Information

Ordering Information

PT 6121! = +5 Volts

PT 6122! = +3.3 Volts

PT Series Suffix

Case/Pin

Configuration

(PT1234X)

Pin Function

Inhibit

(30V max)

Standard Application

V_in

Vertical Through-Hole

Horizontal Through-Hole

Horizontal Surface Mount

V_OADJ

V_in

V_IN

V_OUT

2,3,4

9,10,11

PT6120

GND

V_out

Pkg Style 200

5,6,7,8

PT6120

INH

GND

C₁= Optional 1µF ceramic

Q₁=NFET

C₂= Required 100µF electrolytic

V_out

V_outAdj

Specifications

PT6120 SERIES

Characteristics

(T =25°C unless noted)

Symbols

I_o

Conditions

Min

0.1*

—

Typ

—

Max

1.0

—

Units

Output Current

Over V_inrange

V_in= V_inmin

0.1 ≤ I_o≤ 1.0 A

Short Circuit Current

Input Voltage Range

I_sc

3.5

Apk

V_in

_o= 3.3V

—

(Note: inhibit function cannot be used with Vin above 30V)

V_o= 5V

30/38**

Output Voltage Tolerance

∆V_o

Over V_inRange, I_o= 1.0 A

T_a= 0°C to +60°C

—

1.0

2.0

%V_o

Line Regulation

Load Regulation

Reg_line

Reg_load

V_n

Over V_inrange

—

0.25

0.5

—

%V_o

0.1 ≤ I_o≤ 1.0 A

V_oRipple/Noise

V_in=V_inmin, I_o=1.0 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=9V, I_o=0.5A, V_o=3.3V

V_in=9V, I_o=0.5A, V_o=5V

—

Switching Frequency

Shutdown Current

Quiescent Current

Output Voltage

Adjustment Range

ƒ_o

I_sc

I_nl

V_o

Over V_inand I_oranges

V_in= 15V

400

—

500

100

600

—

kHz

µA

I_o= 0A, V_in=10V

Below V_o

Above V_o

—

See Application Notes.

Absolute Maximum

T_a

θ_ja

T_s

-40

—

+85

°C

Operating Temperature Range

Recommended Operating

Temperature Range

Free Air Convection, V_o= 3.3V

-40

—

+85***

(40-60LFM)

V_o= 5V

Thermal Resistance

Free Air Convection V_o= 3.3V

(40-60LFM) _o= 5V

—

°C/W

°C

Storage Temperature

Mechanical Shock

-40

—

+125

—

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

5.0

grams

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

** Input voltage cannot exceed 30V when the inhibit function is used.

***See Thermal Derating chart.

Note: The PT6120 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends

12 3 4 5 6

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PT6121N 替代型号

型号	品牌	替代类型	描述	数据表
PT6947C	TI	功能相似	SMPS Controller
PT6944C	TI	功能相似	SMPS Controller
PT6941C	TI	功能相似	SMPS Controller

与PT6121N相关器件

型号	品牌	获取价格	描述	数据表
PT6122	TI	获取价格	Adjustable Output Voltage
PT6122A	TI	获取价格	1 AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR
PT6122B	TI	获取价格	IC 1 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDFM12, PLASTIC, SIP-12, Switching
PT6122C	TI	获取价格	1 AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR
PT6122G	TI	获取价格	1A SWITCHING REGULATOR, 600kHz SWITCHING FREQ-MAX, SMA12, ROHS COMPLIANT, SIP-12
PT6122N	TI	获取价格	1 AMP ADJUSTABLE LOW VOLTAGE INPUT INTEGRATED SWITCHING REGULATOR
PT6122R	TI	获取价格	暂无描述
PT6-12-40	ETC	获取价格	Analog IC
PT615	ETC	获取价格	TRIAC\|600V V(DRM)\|15A I(T)RMS\|TO-203AA
PT615S	ETC	获取价格	TRIAC\|600V V(DRM)\|15A I(T)RMS\|TO-208VAR1/2

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