AP1506-33K5G-13_技术文档

AP1506

150kHz, 3A PWM BUCK DC/DC CONVERTER

Description

Pin Assignments

The AP1506 series are monolithic IC designed for a step-down

DC/DC converter, and own the ability of driving a 3A load without

external transistor. Due to reducing the number of external

components, the board space can be saved easily. The external

shutdown function can be controlled by logic level and then come into

standby mode. The internal compensation makes feedback control

have good line and load regulation without external design. Regarding

protected function, thermal shutdown is to prevent over temperature

operating from damage, and current limit is to prevent over current

operating of the output switch. If current limit function occurred and

V_FBis down to 0.5V below, the switching frequency will be reduced.

The AP1506 series operate at a switching frequency of 150kHz thus

allowing smaller sized filter components than what would be needed

with lower frequency switching regulators. Other features include a

guaranteed ±4% tolerance on output voltage under specified input

voltage and output load conditions, and ±15% on the oscillator

frequency. The output version included fixed 3.3V, 5V, 12V, and an

adjustable type. The packages are available in a standard 5-lead

TO263-5, TO220-5 and TO220-5 (R).

(Top View)

5 SD

4 FB

3 GND

2 Output

1 V_IN

Metal Tab GND

TO263-5

(Top View)

5 SD

4 FB

3 GND

2 Output

1 V_IN

TO220-5/TO220-5 (R)

Features



Output Voltage: 3.3V, 5V, 12V and Adjustable Output Version

Adjustable Version Output Voltage Range, 1.23V to 18V+4%

150kHz +15% Fixed Switching Frequency

Voltage Mode Non-Synchronous PWM Control

Thermal-Shutdown and Current-Limit Protection

ON/OFF Shutdown Control Input

Applications



Simple High-Efficiency Step-Down Regulator

On-Card Switching Regulators

Positive to Negative Converter

Operating Voltage can be up to 22V

Output Load Current: 3A

Low Power Standby Mode

Built-in Switching Transistor On Chip

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free.“Green” Device (Note 3)

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free,"Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Typical Application Circuit

(1) Fixed Type Circuit

FB

12V

DC Input

L1

uH

4

3.3V/3A

Output Load

33

Inductor

Output

AP1506

-33

1

2

V_IN

3

5

D1*

Schottky Diode

Co

Capacitor

SD

C_IN

Capacitor

GND

(2) Adjustable Type Circuit

R1

R2

FB

L1

47uH

12V

DC Input

4

5V/3A

Output Load

Output

1

AP1506

2

3

V

IN

5

SD

GND

C_IN

Capacitor

Co

Capacitor

D1*

Schottky Diode

R1

V_OUT= V_FB



(1 +

)

R2

V_FB= 1.23V

R2 = 1kΩ to 3kΩ

(3) Delay Start Circuit

R2

R1

FB

L1

47uH

12V

DC Input

4

5V/3A

Output Load

Output

2

AP1506

1

V

IN

C

DELAY

3

5

0.1uF

SD

GND

C_IN

Capacitor

Co

Capacitor

D1*

R_DELAY

10K

Schottky Diode

Note:

For up to 2A = DFLS230L (V_F= 0.42V)

For up to 3A = B340LA, B340LB (V_F= 0.45V)

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Pin Descriptions

Pin Number

Pin Name

V_IN

Description

1

2

3

4

5

Operating Voltage Input

Switching Output

Output

GND

FB

Ground

Output Voltage Feedback Control

ON/OFF Shutdown

SD

Functional Block Diagram

SD

V_IN

220mV

200mV

Current

1.235V

2.5V

Start

up

Source

Reference

bias

Regulator

+

Comp

-

Comp

+

Frequecy

compen-

sation

+

-

Amp

3A

Switch

-

Comp

+

Pre-driver

FB

Output

GND

Thermal

Shutdown

150KHz

OSC.

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Absolute Maximum Ratings

Symbol

Parameter

Machine Model ESD Protection

Rating

400

Unit

V

ESD MM

V_CC

Supply Voltage

+24

V

SD Pin Input Voltage

FB Pin Voltage

-0.3 to +18

-1

V

V_SD

V

V_FB

Output Voltage to Ground

Power Dissipation

V

V_OUT

P_D

Internally Limited

-65 to +150

-40 to +125

W

°C

Storage Temperature

Operating Junction Temperature

T_ST

T_OP

Recommended Operating Conditions

Symbol

V_OP

Parameter

Min

Max

22

Unit

V

Operating Voltage

Operating Ambient Temperature

4.5

-20

+85

°C

T_A

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Electrical Characteristics (All Output Voltage Versions)

Unless otherwise specified, V_IN= 12V for 3.3V, 5V, adjustable version and V_IN= 18V for the 12V version. I_LOAD= 0.5A. Specifications with

boldface type are for full operating temperature range, the other type are for T_J= +25°C.

Symbol

Parameter

Conditions

Min

Typ

Max

-50

Unit

V_FB= 1.3V

I_FB

Feedback Bias Current

—

-10

nA

(Adjustable version only)

-100

173

127

150

f_OSC

Oscillator Frequency

—

kHz

110

—

Oscillator Frequency of Short Circuit When current limit occurred and V_FB

f_SCP

10

30

50

Protection

< 0.5V, T_A= 25°C

I_OUT= 3A

1.6

V_SAT

DC

Saturation Voltage

No outside circuit

V_FB= 0V force driver on

—

1.4

V

1.7

Max. Duty Cycle (ON)

Min. Duty Cycle (OFF)

V_FB= 0V force driver on

V_FB= 12V force driver off

—

100

0

—

%

Peak current

5.5

I_CL

Current Limit

No outside circuit

V_FB= 0 force driver on

No outside circuit

V_FB= 12V force driver off

3.6

4.5

A

6.5

Output = 0V

—

-200

µA

Output Leakage

Current

I_L

Output = -1V

V_IN= 22V

—

-5

5

—

10

mA

I_Q

Quiescent Current

V_FB= 12V force driver off

150

200

0.6

SD pin = 5V

V_IN= 22V

I_STBY

Standby Quiescent Current

—

70

µA

V_IL

V_IH

Low (Regulator ON)

High (Regulator OFF)

0

—

SD Pin Logic Input Threshold

Voltage

V

V_IN

2.0

(Note 5)

I_H

I_L

SD Pin Logic Input Current

SD Pin Input Current

V_LOGIC= 2.5V (OFF)

V_LOGIC= 0.5V (ON)

TO263-5 (Note 4)

—

-0.1

37

31

6

-0.01

-1

µA

—

Thermal Resistance Junction to

Ambient

θ_JA

°C/W

TO220-5 (R) (Note 4)

TO263-5 (Note 4)

—

Thermal Resistance Junction to

Case

θ_JC

TO220-5 (R) (Note 4)

5

—

Notes: 4. Test condition: Device mounted with copper area of approximately 3 inch², no air flow.

5. Maximum voltage applied to V_SDis the lower of V_INor 16V.

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Electrical Characteristics (Cont.)

Specifications with boldface type are for full operating temperature range, the other type are for T_J= +25°C.

Min

Max

Symbol

V_FB

Parameter

Conditions

5V < V_IN< 22V

Typ

Unit

1.193

1.23

1.267

Output Feedback

0.2A < I_LOAD< 3A

V

1.18

—

1.28

AP1506-ADJ

V_OUTprogrammed for 3V



Efficiency

V_IN= 12V, I_LOAD= 3A

—

3.168

3.135

—

74

3.3

—

75

5

—

3.432

3.465

—

%

V

5.5V < V_IN< 22V

0.2A < I_LOAD< 3A

V_OUT

Output Voltage

Efficiency

AP1506-3.3V

AP1506-5V

AP1506-12V



V_IN= 12V, I_LOAD= 3A

%

V

4.8

5.2

8V < V_IN< 22V

V_OUT

Output Voltage

Efficiency

0.2A < I_LOAD< 3A

4.75

—

80

12

—

89

5.25

—



V_IN= 12V, I_LOAD= 3A

%

V

11.52

11.4

—

12.48

12.6

—

15V < V_IN< 22V

0.2A < I_LOAD< 3A

V_OUT

Output Voltage

Efficiency



V_IN= 16V, I_LOAD= 3A

%

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Typical Performance Characteristics

AP1506 Efficiency vs. Temperature

(V_IN= 12V, V_OUT= 5V, Io = 3A)

AP1506 Efficiency vs. Temperature

(V_IN= 12V, V_OUT= 3.3V, Io = 3A)

83

82

81

80

79

78

77

76

75

74

73

78

77

76

75

74

73

72

71

70

72

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (T_A) (^oC)

AP1506 Saturation Voltage vs. Temperature

(V_CC= 12V, V_FB= 0V, V_SD= 0)

AP1506 Switch Current Limit vs. Temperature

(V_CC= 12V, V_FB= 0V)

1.6

5.5

5

1.5

3A

1.4

1.3

1.2

1.1

1

2A

4.5

4

1A

0.5A

0.9

0.8

0.7

3.5

3

-50

-25

0

25

50

75

100

125

-50

-30

-10

10

30

50

70

90

Temperature (T_A) (^oC)

AP1506 Supply Current vs. Temperature

(V_CC= 12V, No Load, V_ON/OFF= 0V (Switch ON), V_ON/OFF= 5V (Switch OFF))

60

55

50

15

14

13

12

11

10

9

Switch OFF

45

40

8

Switch ON

7

35

6

5

30

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (T_A) (^oC)

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (T_A) (^oC)

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Typical Performance Characteristics (Cont.)

AP1506 Threshold Voltage vs. Temperature

(V_CC= 12V, I_O= 100mA)

AP1506 ON/OFF Current vs. ON/OFF Voltage

(V_IN= 12V)

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1

10

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

0.9

0.8

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (T_A) (^oC)

0

3

6

9

12

15

18

21

ON/OFF Voltage (V)

AP1506 Frequency vs. Temperature

(V_CC= 12V, I_C= 500mA, V_OUT= 5V)

AP1506 Feedback Current vs. Temperature

(Vcc = 12V, V_OUT= 5V, V_FB= 1.3V)

170

165

160

155

150

145

10

0

-10

-20

-30

-40

-50

140

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (T_A) (^oC)

Output Voltage vs. Temperature

(V_IN= 12V, Io = 3A)

3.5

3.45

3.4

3.35

3.3

3.25

3.2

3.15

3.1

3.05

3

2.95

2.9

-40 -20

0

20 40 60 80 100 120 140 160

Temperature (T_A) (^oC)

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Functional Description

Pin Functions

+V_IN

This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor must be presented at this pin to minimize voltage

transients and to supply the switching currents needed by the regulator.

Ground

Circuit ground.

Output

Internal switch. The voltage at this pin switches between (+V_IN- V_SAT) and approximately -0.5V, with a duty cycle of approximately V_OUT/ V_IN. To

minimize coupling to sensitive circuitry, the PC board copper area connected to this pin should be kept to a minimum.

Feedback (FB)

Senses the regulated output voltage to complete the feedback loop.

ON/OFF (SD)

Allows the switching regulator circuit to be shutdown using logic level signals thus dropping the total input supply current to approximately 150µA.

Pulling this pin below a threshold voltage of approximately 1.3V turns the regulator on, and pulling this pin above 1.3V (up to a maximum of 18V)

shuts the regulator down. If this shutdown feature is not needed, the SD pin can be wired to the ground pin.

Thermal Considerations

The TO263-5 surface mount package tab was designed to be soldering to the copper on a printed circuit board. The copper and the board are the

heat sink for this package and the other heat producing components, such as the catch diode and inductor. The PC board copper area that the

package is soldered to should be at least 0.8 inch², and ideally should have 2 or more square inches of 2 oz. Additional copper area improves the

thermal characteristics, but with copper areas greater than approximately 6 inch², only small improvements in heat dissipation are realized. If

further thermal improvements are needed, double sided, multi-layer PC board with large copper areas and/or airflow will be recommended.

The AP1506 (TO263-5 package) junction temperature rises above ambient temperature with a 2A load for various input and output voltages. This

data was taken with the circuit operating as a buck-switching regulator with all components mounted on a PC board to simulate the junction

temperature under actual operating conditions. This curve can be used for a quick check for the approximate junction temperature for various

conditions, but be aware that there are many factors that can affect the junction temperature. When load currents higher than 3A are used, double

sided or multi-layer PC boards with large copper areas and/or airflow might be needed, especially for high ambient temperatures and high output

voltages.

For the best thermal performance, wide copper traces and generous amounts of printed circuit board copper should be used in the board layout

(Once exception to this is the output (switch) pin, which should not have large areas of copper). Large areas of copper provide the best transfer of

heat (lower thermal resistance) to the surrounding air, and moving air lowers the thermal resistance even further.

The TO220-5 and TO220-5 (R) package options (NRND) need a heat sink under most conditions. The size of the heat sink depends on the input

voltage, the output voltage, the load current and the ambient temperature. The AP1506 junction temperature rises above ambient temperature for

a 3A load and different input and output voltages. The data for these curves was taken with the AP1506 (TO220-5 and TO220-5 (R) packages)

operating as a buck-switching regulator in an ambient temperature of +25°C (still air). These temperature rise numbers are all approximate and

there are many factors that can affect these temperatures. Higher ambient temperatures require more heat sinking.

Package thermal resistance and junction temperature rise numbers are all approximate, and there are many factors that will affect these numbers.

Some of these factors include board size, shape, thickness, position, location, and even board temperature. Other factors are: trace width, total

printed circuit copper area, copper thickness, single or double-sided, multi-layer board and the amount of solder on the board. The effectiveness of

the PC board to dissipate heat also depends on the size, quantity and spacing of other components on the board, as well as whether the

surrounding air is still or moving. Furthermore, some of these components such as the catch diode will add heat to the PC board and the heat can

vary as the input voltage changes. For the inductor, depending on the physical size, type of core material and the DC resistance, it could either act

as a heat sink taking heat away from the board, or it could add heat to the board.

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Ordering Information

AP1506 XX XXX X - X

Output Version

Package

Green

Packing

U : Tube

Blank : Adjustable

33 : 3.3V

K5 : TO263-5

T5 : TO220-5

T5R : TO220-5 (R)

L : Lead Free

G : Green

13 : Tape & Reel

50 : 5.0V

12 : 12V

Part Number Suffix

Voltage Package

Package

(Note 7)

Status

(Note 6)

Part Number

Green Quantity

Alternative

13” Tape

(V)

Code

Tube

and Reel

AP1506-12K5G-13

AP1506-33K5G-13

AP1506-50K5G-13

AP1506-K5G-13

AP1506-T5G-U

12

K5

TO263-5

Green

800

50

NA

-U

-13

NA

NRND

None

—

3.3

5.0

K5

TO263-5

In production

NRND

ADJ

K5

TO263-5

—

T5

TO220-5

None

AP1506-T5RG-U

T5R

TO220-5 (R)

50

-U

NRND

Notes: 6. All Lead-free versions in TO220-5/(R) are End of Life (EOL) with no replacement.

All green fixed output voltage versions in TO220-5/(R) are End of Life (EOL) with no replacement; Adjustable versions are Not Recommended for New

Designs (NRND).

All Lead free versions in TO263-5 are End of Life (EOL) with limited replacement.

7. For packaging details, go to our website at: https://www.diodes.com/design/support/packaging/diodes-packaging/diodes-package-outlines-and-pad-layouts/.

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Marking Information (Note 6)

(1) TO263-5

( Top view )

Logo

Output Type:

1506 : ADJ

1506-33 : 3.3V

1506-50 : 5.0V

1506-12 : 12V

L : Lead Free

G : Green

ID code

Xth week: 01~52

Year: "07" = 2007

"08" = 2008

1506-XX

YY WW X X

(2) TO220-5/ TO220-5 (R)

( Top view )

Logo

Output Type:

1506 : ADJ

1506-33 : 3.3V

1506-50 : 5.0V

1506-12 : 12V

L : Lead Free

G : Green

ID code

Xth week: 01~52

Year: "07" = 2007

"08" = 2008

1506- XX

YY WW X X

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December 2017

AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Package Outline Dimensions (All Dimensions in mm)

Please see http://www.diodes.com/package-outlines.html for the latest version.

(1) Package Type: TO263-5

A

TO263-5

Min

4.07

1.14

0.66

0.36

8.65

9.78

1.57

A1

E

L2

D

Dim

A

A1

b

c

D

Max

4.85

1.40

1.02

0.64

9.65

10.54

1.85

L

E

e

L1

L

14.61 15.88

L1

L2

2.29

-

2.79

2.92

b

e

c

All Dimensions in mm

(2) Package Type: TO220-5

TO220-5

Dim

A

b

b1

C

D

D1

E

e

Min

3.55

0.51

1.14

0.31

14.20

5.84

9.78

1.6

Max

4.85

1.14

1.78

1.14

16.50

6.86

10.54

1.8

e1

F

J1

L

L1

P

Q

6.6

7.0

0.51

2.03

12.72

3.66

3.53

2.54

1.40

2.92

14.72

6.35

4.09

3.43

All Dimensions in mm

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AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

Package Outline Dimensions (Cont. All Dimensions in mm)

Please see http://www.diodes.com/package-outlines.html for the latest version.

(3) Package Type: TO220-5 (R)

TO220-5(R)

Dim Min Typ Max

A

A1

A2

A3

A4

b

c

D

D1

e

4.37 4.57 4.77

1.12 1.27 1.40

2.45 2.65 2.85

4.10 4.40 4.70

7.95 8.25 8.55

0.64 0.79 0.94

0.35 0.38 0.55

14.80 15.00 15.20

8.50 8.70 8.90

-

1.70

-

E

H1

9.96 10.16 10.36

6.10 6.30 6.50

H2 21.32 22.12 22.92

H3 24.15 24.95 25.75

L

-

6.30

-

L1 13.10 13.50 13.90

P

Q

3.64 3.84 4.04

2.55 2.75 2.95

All Dimensions in mm

Suggested Pad Layout

Please see http://www.diodes.com/package-outlines.html for the latest version.

(1) Package Type: TO263-5

X

Value

Dimensions

(in mm)

10.9

1.05

15.7

9.1

X

X1

Y

Y1

Y2

C

Y1

Y

2.5

1.7

Y2

X1

C

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AP1506

Document number: DS31015 Rev. 8 - 2

AP1506

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes

without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the

application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or

trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume

all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated

website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.

Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and

hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or

indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings

noted herein may also be covered by one or more United States, international or foreign trademarks.

This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the

final and determinative format released by Diodes Incorporated.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express

written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:

1. are intended to implant into the body, or

2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the

labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the

failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and

acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any

use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related

information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its

representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.

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AP1506

Document number: DS31015 Rev. 8 - 2


型号：	AP1506-33K5G-13
厂家：	DIODES INCORPORATED
描述：	Switching Regulator, Voltage-mode, 6.5A, 173kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN 开关
文件：	总14页 (文件大小：415K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AP1506-33K5G-13 [DIODES]

相关型号：

AP1506-33K5L

AP1506-33K5L

AP1506-33K5L

AP1506-33K5L-13

AP1506-33K5L-U

AP1506-33K5LA

AP1506-33K5LA

AP1506-33K5LA

AP1506-33N

AP1506-33N

AP1506-33N

AP1506-33NA