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SPX2732T-3.3

更新时间：2024-09-18 02:11:35

品牌：SIPEX

描述：3A High Current Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response

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SPX2732T-3.3 概述

3A High Current Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response 3A大电流低压差稳压器可调＆固定输出，响应速度快线性稳压器IC

SPX2732T-3.3 规格参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	TO-263, 3 PIN	Reach Compliance Code：	unknown
风险等级：	5.92	Is Samacsys：	N
最大回动电压 1：	0.6 V	最大输入电压：	16 V
最小输入电压：	4.3 V	JESD-30 代码：	R-PSSO-G3
长度：	10.287 mm	功能数量：	1
端子数量：	3	工作温度TJ-Max：	125 °C
工作温度TJ-Min：	-45 °C	最大输出电流 1：	3 A
最大输出电压 1：	3.36 V	最小输出电压 1：	3.24 V
标称输出电压 1：	3.3 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	TO-263	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	4.6 mm
表面贴装：	YES	端子形式：	GULL WING
端子节距：	1.7 mm	端子位置：	SINGLE
宽度：	9.04 mm	Base Number Matches：	1

SPX2732T-3.3 数据手册

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SPX2730/31/32/33

3A High Current Low Dropout Voltage Regulator

Adjustable & Fixed Output,

Fast Response

(ADVANCED INFORMATION)

FEATURES

APPLICATIONS

• Adjustable Output Down To 1.2V

• 1% output accuracy @ 3.3V, 5.0V

• Output Current of 3A

• Powering VGA & Sound Card

• Power PCSupplies

• SMPS Post-Regulator

• Low Dropout Voltage 370mV(Typ.) @ 3A.

• Extremely Tight Load And Line Regulation

• Extremely Fast Transient Response

• Standard 3-Terminal Low Cost TO-220, TO-263

• Reverse-battery and “Load Dump” Protection

• Zero Current Shutdown Mode (5-Pin Versions)

• High Efficiency “Green” Computer Systems

• High Efficiency Linear Power Supplies

• Portable Instrumentation

• Constant Current Regulators

• Adjustable Power Supplies

• Battery charger

• Error Flag Signal Output Out-of Regulation (5-Pin Versions)

PRODUCT DESCRIPTION

The SPX2730/31/32/33 is a 3A high accuracy, low dropout voltage regulator (370mV(Typ)@ 3A). The SPX2730/31/32/33 is

designed for low voltage application that requires lower dropout voltage and faster transient response. This device is an excellent

choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2.5V

to 3.8V supplies and as a post regulator for switching supplies applications.

The SPX2730/31/32/33 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive

and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. Features such as enable pin, Error flag pin are

also included in the 5-pin package.

The SPX2730/31/32/33 are offered in 3 & 5 pin TO-220 & TO-263 packages compatible with other 3 terminal regulators.

PIN CONNECTIONS

TO-220-5 (U)

TO-220-3 (U)

TO-263-5 (T)

SPX2731/32/33

TO-263-3 (T)

SPX2730

SPX2731

SPX2733

SPX2732

SPX2731

SPX2733

SPX2732

SPX2731/32/33

SPX2730

1) FLAG

1) ENABLE

1) FLAG

1) ENABLE

2) INPUT

3) GND

2) INPUT

3) GND

2) INPUT

3) GND

2) INPUT

3) GND

2) INPUT

3) GND

3 5

2) INPUT

3) GND

4) OUTPUT

5) ADJUST

4) OUTPUT

5) FLAG

4) OUTPUT

5) ADJUST

4) OUTPUT

5) FLAG

4) OUTPUT

5) ADJUST

4) OUTPUT

5) ADJUST

Front View

Top View

Front View

Rev. 12/7/00

SPX2730/31/32/33

ABSOLUTE MAXIMUM RATINGS

Lead Temp. (Soldering, 5 Seconds) ................................ 260°C

Maximum Input Voltage ...................................... 16V

Storage Temperature Range ......................................................-65° to +150°C

Operating Junction Temperature Range

SPX2730/31/32/33 Control Section................................ -45°C +125°C

SPX2730/31/32/33 Power Transistor............................... -45°C +150°C

ELECTRICAL CHARACTERISTICS ^{(NOTE 1) at I}_OUT= 10mA, T_a=25°C, unless otherwise specified.

SPX2730/31/32/33

PARAMETER

CONDITIONS

Typ

Units

Min

Max

3.3V Version

Output Voltage (Note 2)

I_OUT= 10mA

10mA ≤I_OUT≤ 3A, 4.75V≤V_IN≤16V

3.3

3.270

3.330

3.3

3.240

3.360

5.0V Version

I_OUT= 10mA

5.0

4.95

5.05

Output Voltage (Note 2)

5.0

4.90

5.10

10mA ≤I_OUT≤ 3A, 5.5V≤V_IN≤16V

All Voltage Options

Reference Voltage

1.240

1.228

1.215

1.203

1.252

1.265

1.277

0.5

(Note 8)`

Reference Voltage

Line Regulation

Load Regulation

0.06

0.2

I_O= 10mA, (V_OUT+ 1V) ≤ V_IN≤ 16V

V_IN= V_OUT+ 5V, 10mA ≤ I_OUT≤ I_FULLLOAD

(Note 2, 6)

Output Voltage (Note 6)

Temperature Coef.

100

175

ppm/°C

∆V

∆T

Dropout Voltage

I_O= 100mA

I_O= 1.5A

I_O= 3A

250

370

600

0.9

Ground Current

I_O= 1.5A, V_IN= V_OUT, +1V

I_O= 3A

V_IN= 0.5V less than specified V_OUTI_OUT= 10mA

I_GNDDOGround Pin Current at

Dropout

Current Limit

V_OUT= 0V (Note 4)

4.5

3.0

400

V _RMS

C_L= 10µF

Output Noise Voltage

(10Hz to 100kHz)

I_L= 100mA

260

C_L= 33µF

Adjust Pin

120

Bias Current

(Note 7)

ppm/°C

Reference Voltage

Temperature

Coefficient

0.1

nA/°C

Adjust Pin Bias

Current Temperature

Coefficient

Flag Output (Error Comparator) SPX2731/SPX2733

V_OH= 16V

0.01

220

1.00

µA

Output Leakage

2.00

Current

Device set for 5V. V_IN= 4.5V

I_OL= 250µA

300

Output Low

Voltage

400

Rev. 12/7/00

SPX2730/31/32/33

(Cont.)

Device set for 5V (Note 9)

Upper Threshold

Voltage

Lower Threshold

Voltage

140

Hysteresis

ENABLE Input SPX2731/SPX2732

Input Logic Voltage

0.8

Low (OFF)

2.4

High (ON)

V_EN= 16V

V_EN= 0.8V

(Note 10)

100

600

750

Enable Pin

Input Current

µA

Regulator Output

500

Current in Shutdown

Notes:

The Bold specifications apply to the full operating temperature range.

Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle.) The maximum continuous supply voltage is 16V.

Note 2: Full load current (I_FL) is defined as 1.5A for the

Note 3: Dropout voltage is defined as the input-to output differential when the output voltage drops to 99% of its nominal value with V_OUT+ 1V applied to V_IN.

Note 4: V_IN= V_{OUT (NOMINAL)}+1V. For example, use V_IN= 4.3V for a3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.

Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current.

Note 6: Output voltage temperature coefficient is defined as the worst case voltage changed divided by the total temperature range.

Note 7: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation

effects. Specifications are for a 200mA load pulse as V_IN= 20V (a 4W pulse) for T = 10ms.

Note 8: V_REF≤ V_OUT≤ (V_IN– 1), 2.3V ≤ V_IN≤ 16V, 10mA < IL ≤ I_FL, TJ ≤ T_JMAX

Note 9: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured a 6V input. To

express these thresholds in terms of output voltage change, multiply the error amplifier gain = V_OUT/V_REF= (R1 + R2)R2. For example, at a programmable output

voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of V_OUTas V_OUT

is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.

Note 10: V_EN≤ 0.8V and V_IN≤ 16V, V_OUT= 0.

Rev. 12/7/00

SPX2730/31/32/33

Adjustable Regulator Design

APPLICATION HINTS

SPX2732/33are adjustable regulators and maybe programmed

for any value between 1.25V and 16V using two resistors.

The relation between the resistors is given by:

R₁=R₂(V_OUT/1.240 –1)

Resistors have a large value up to 1mΩ in order to reduce the

current consumption. This might be interesting in the case of

widely varying load currents.

The SPX2730/31/32/33 incorporates protection against over-

current faults, reversed load insertion, over temperature

operation, and positive and negative transient voltage.

However, the use of an output capacitor is required in order to

insure the stability and the performances.

Thermal Consideration

Although the SPX2730/31/32/33 offers limiting circuitry for

overload conditions, it is necessary not to exceed the

maximum junction temperature, and therefore to be careful

about thermal resistance. The heat flow will follow the lowest

resistance path, which is the Junction-to-case thermal

resistance. In order to insure the best thermal flow of the

component, a proper mounting is required. Note that the case

of the device is electrically connected to the output. The

case has to be electrically isolated, a thermally conductive

spacer can be used. However do not forget to consider its

contribution to thermal resistance.

Error Flag

SPX2731/33 features an error indicating either an over current

fault or a low input voltage. This flag pulls low when such a

problem occurs and may sink 10mA. It is inoperative during

thermal shutdown.

Enable Input

SPX2731/32 features enable input allowing turning ON &

OFF the device. EN has been designed to be compatible with

TTL/CMOS logic. When the regulator is ON, the current

flowing through this pin is approximately 20µA.

Assuming:

V_IN= 10V, V_OUT= 5V, I_OUT= 1.5A, T_A= 50°C/W,

θ_{Heatsink Case}= 6°C/W, θ_{Heatsink Case}= 0.5°C/W, θ _JC= 3°C/W

V_OUT

V_IN

SPX2730

Power dissipation under this condition

P_D= (V_IN– V_OUT) * I_OUT= 7.5W

Junction Temperature

T_J= T_A+ P_D* (θ_{Case – HS}+ θ _HSθ _JC

)

Fig.1 Basic Fixed Output Regulator

For the Control Section

T_J= 50 + 7.5*(0.5 + 6=3) = 121.25°C

121.25°C < T_{J (max)}for the Control & Power Sections.

In both case reliable operation is insured by adequate junction

temperature.

V_OUT

V_IN

SPX2732/33

Capacitor Requirements

R₁

The output capacitor is needed for stability and to minimize

the output noise. The required value of the capacitor varies

with the load. However, a minimum value of 10µF Aluminum

will guarantee stability over load. A tantalum capacitor is

recommended for a fast load transient response

R₂

_OUT= V_REF

(R /R ) ]

1 2

X [ 1 +

For best results, the total series resistance should be

small enough to pass the minimum regulator load current

If the power source has high AC impedance, a 0.1µF capacitor

between input & ground is recommended. This capacitor

should have good characteristics up to 250 kHz.

Fig. 2 Adjustable Output Voltage Regulator

Minimum Load Current

To ensure a proper behavior of the regulator at light load, a

minimum load of 10mA for SPX2730/31/32/33 is required.

Rev. 12/7/00

SPX2730/31/32/33

PACKAGE DRAWING

TO-263-3L (T)

(4.470 ^±

0.127)

0.051)

0.005

0.176

0.050

0.055 (1.397)

0.405 ^±

0.005

0.002 (1.270

(10.287 0.127)

0.356 ^±0.005

(9.042 0.127)

0.600 ⁺_-0.025

(15.24

0.635)

0.010

0.100

(2.540 0.254)

0° 8°

0.103 BSC

(2.616)

0.050 (1.270)

0.032 ⁺_-0.001

₊0.003

0.015

(0.813 ⁺_-0.025)

(0.381 0.074)

Rev. 12/7/00

SPX2730/31/32/33

PACKAGE DRAWING

TO-263-5L (T)

0.055 (1.397)

0.176

0.050

0.005 (4.470 0.127)

0.405 ± 0.005

0.127)

0.002

(1.270 0.051)

(10.287 ±

0.356

(9.042

0.005

0.127)

0.600 0.025

0.100

0.010

(15.24

0.635)

(2.540 0.254)

0.015

0.003

(0.381

0.074)

0.067

0.005

0.032 0.003

(1.702 0.127)

(0.813

0.076)

0° 8°

Rev. 12/7/00

SPX2730/31/32/33

PACKAGE DRAWING

TO-220-3L (U)

0.180 ± 0.005

(4.572 ± 0.127)

0.151D ± 0.002

(3.835 D ± 0.051)

0.408 ± 0.013

(10.36 ± 0.33)

0.050 ± 0.002

(1.270 ± 0.051)

0.110 ± 0.010

(2.794 ± 0.254)

0.250 ± 0.010

(6.350 ± 0.254)

Tapered 1^o

2 Sides

0.340 ± 0.010

(8.636 ± 0.254)

SEATING PLANE

1.020 ± 0.015

(25.910 ± 0.381)

0.150 MIN

(3.81 MIN)

7^oTyp.

0.540 ± 0.015

(13.720 ± 0.381)

0.410

(10.41)

0.050 TYP

(1.27 TYP)

0.200 ± 0.010

(5.080 ± 0.254)

0.015 ± 0.010/-0.015

(2.667± 0.254/-0.381)

0.100 ± 0.010

(2.540 ± 0.254)

0.015 ± 0.010/-0.002

(0.381± 0.254/-0.051)

0.032 ± 0.005

(0.813 ± 0.127)

Rev. 12/7/00

SPX2730/31/32/33

PACKAGE DRAWING

TO-220-5L (U)

0.150 D 0.005

0.175

(4.45

0.005

0.13)

(3.81D

0.13)

0.400

(10.16

0.005

0.13)

0.050

(1.27

0.005

0.13)

0.108

(2.74

0.005

2.74)

0.250

(6.35

0.005

0.13)

0.590

(14.99

0.005

0.13)

SEATING

PLANE

1.137 REF

(28.88 REF)

7°

Typ.

0.547

(13.89

0.005

0.005)

0.067

(1.70

0.005

0.105

(2.67

0.005

0.13)

0.032

(0.81

0.005

0.13)

0.127)

0.268 REF

(6.81 REF)

0.268 REF

0.015

(0.38

0.005

0.13)

Rev. 12/7/00

SPX2730/31/32/33

ORDERING INFORMATION

Ordering No. Output Voltages Packages

3.3V

5.0V

3.3V

5.0V

3.3V

5.0V

3.3V

5.0V

Adj

3 Lead TO-220

SPX2730U-3.3

SPX2730U-5.0

SPX2730T-3.3

SPX2730T-5.0

SPX2731U-3.3

SPX2731U-5.0

SPX2731T-3.3

SPX2731T-5.0

SPX2732U

3 Lead TO-220

3 Lead TO-263

3 Lead TO-220

3 Lead TO-263

5 Lead TO-220

3 Lead TO-220

5 Lead TO-263

3 Lead TO-263

5 Lead TO-220

3 Lead TO-220

5 Lead TO-263

3 Lead TO-263

3.3V

5.0V

Adj

SPX2732U-3.3

SPX2732U-5.0

SPX2732T

3.3V

5.0V

Adj

SPX2732T-3.3

SPX2732T-5.0

SPX2733U

3.3V

5.0V

Adj

SPX2733U-3.3

SPX2733U-5.0

SPX2733T

3.3V

5.0V

SPX2733T-3.3

SPX2733T-5.0

Corporation

SIGNAL PROCESSING EXCELLENCE

Sipex Corporation

Headquarters and Main Offices:

22 Linnell Circle

Billerica, MA 01821

TEL: (978) 667-8700

FAX: (978) 670-9001

e-mail: sales@sipex.com

233 South Hillview Drive

Milpitas, CA 95035

TEL: (408) 935-7600

FAX: (408) 934-7500

Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described

hereing; neither does it convey any license under its patent rights nor the rights of others.

Rev. 12/7/00

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