AP1506-12NLA [ANACHIP]
150KHz, 3A PWM Buck DC/DC Converter; 为150KHz ， 3A PWM降压型DC / DC转换器
| 型号： | AP1506-12NLA |
| 厂家： | 
ANACHIP CORP |
| 描述： | 150KHz, 3A PWM Buck DC/DC Converter |
| 文件： | 总13页 (文件大小：234K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Features
General Description
- Output voltage: 3.3V, 5V, 12V and adjustable
output version
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 component, 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 VFB is 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 TO-220, a 5-lead TO-263 or 8-lead
PDIP.
- 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
- Operating voltage can be up to 22V
- Output load current: 3A
- TO220-5L, TO263-5L and PDIP-8 packages
- Low power standby mode
- Built-in switching transistor on chip
Applications
- Simple High-efficiency step-down regulator
- On-card switching regulators
- Positive to negative converter
Pin Assignments
Pin Descriptions
( Top View )
Pin
Name
VIN
Pin #
Description
5 SD
TO
1
PDIP
4 FB
1
2
Operating voltage input
Switching output
3 GND
2 Output
Output
GND
2
3
5~8 Ground
1 VIN
Output voltage feedback
(Top View)
FB
SD
4
5
3
4
Metal Tab GND
control
VIN
Output
FB
1
8
GND
GND
GND
GND
TO263-5L
ON/OFF Shutdown
2
3
4
7
6
5
SD
( Top View )
PDIP-8L
5 SD
4 FB
3 GND
2 Output
1 VIN
TO220-5L
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.3 Oct 24, 2005
1/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Ordering Information
AP1506 XX X X X
Package
Lead Free
Packing
Output version
Blank : Tube
Blank : Adjustable T5: TO220-5L
Blank : Normal
A
: Taping
-12 : 12V
-33 : 3.3V
-50 : 5.0V
K5: TO263-5L
T5R: TO220-5L(R)
N: PDIP-8L
L : Lead Free Package
Block Diagram
SD
VIN
220mV
200mV
Current
1.235V
Reference
2.5V
Start
up
Source
bias
Regulator
+
Comp
-
-
Comp
+
Frequecy
compen-
sation
+
Amp
-
3A
-
Comp
Pre-driver
FB
Switch
+
Output
GND
Thermal
150KHz
OSC.
Shutdown
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
2/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Absolute Maximum Ratings
Symbol
VCC
Parameter
Supply Voltage
Rating
+24
Unit
V
VSD
-0.3 to +18
V
ON/OFF Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
VFB
VOUT
PD
-0.3 to +18
V
-1
V
Internally limited
-65 to +150
-40 to +125
+4.5 to +22
W
oC
oC
V
TST
Storage Temperature
Operating Temperature
Operating Voltage
TOP
VOP
Electrical Characteristics (All Output Voltage Versions)
Unless otherwise specified, VIN=12V for 3.3V, 5V, adjustable version and VIN=18V for the 12V version. ILOAD = 0.5A
Symbol
Parameter
Conditions
VFB=1.3V
(Adjustable version only)
Min.
Typ.
Max.
Unit
-50
-100
173
173
IFB
Feedback Bias Current
-10
nA
127
110
150
FOSC
FSCP
Oscillator Frequency
KHz
KHz
Oscillator Frequency of When current limit occurred
10
30
50
1.6
1.7
Short Circuit Protect
and VFB < 0.5V, Ta=25 oC
I
OUT=3A
VSAT
DC
ICL
Saturation Voltage
1.4
V
%
A
No outside circuit
VFB=0V force driver on
VFB=0V force driver on
VFB=12V force driver off
Peak current
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
100
0
5.5
Current Limit
3.6
4.5
No outside circuit
6.5
VFB=0 force driver on
No outside circuit
Output
Output = 0V
-200
uA
IL
Leakage VFB=12 force driver off
Current
Quiescent Current
Output =-1V
VIN=22V
-5
5
mA
mA
IQ
VFB=12 force driver off
10
150
Standby Quiescent
ON/OFF pin=5V
VIN=22V
ISTBY
70
uA
Current
200
0.6
-
VIL
VIH
Low (regulator ON)
-
ON/OFF Pin Logic Input
Threshold Voltage
1.3
V
High (regulator OFF)
2.0
ON/OFF Pin Logic
Input Current
ON/OFF Pin Input
Current
IH
IL
V
LOGIC=2.5V (OFF)
-0.01
-1
uA
VLOGIC=0.5V (ON)
-0.1
TO220-5L
TO263-5L
PDIP-8L
TO220-5L
TO263-5L
PDIP-8L
2.5
3.5
12
28
23
35
Thermal Resistance
Junction to Case
θJC
oC/W
oC/W
with copper area
of approximately
3 in2
Thermal Resistance
Junction to Ambient
θJA
Specifications with boldface type are for full operating temperature range, the other type are for TJ=25ºC.
Anachip Corp.
www.anachip.com.tw
3/13
Rev.1.3 Oct 24, 2005
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
Typ.
Limit
Unit
5V < VIN < 22V
0.2A < ILOAD < 3A
VOUT programmed for
3V
V
Output
VFB
1.23
1.193/1.18
1.267/1.28
VMIN
VMAX
Feedback
AP1506-ADJ
η
Efficiency
Output voltage
Efficiency
V
IN = 12V, ILOAD=3A
74
3.3
75
5
%
V
5.5V < VIN < 22V
0.2A < ILOAD < 3A
3.168/3.135
3.432/3.465
VOUT
VMIN
VMAX
AP1506-3.3V
AP1506-5V
AP1506-12V
η
V
IN = 12V, ILOAD=3A
%
V
8V < VIN < 22V
4.8/4.75
5.2/5.25
VOUT
Output voltage
Efficiency
VMIN
VMAX
0.2A < ILOAD < 3A
η
VIN = 12V, ILOAD=3A
80
12
89
%
V
15V < VIN < 22V
0.2A < ILOAD < 3A
11.52/11.4
12.48/12.6
VOUT
Output voltage
Efficiency
VMIN
VMAX
η
VIN = 16V, ILOAD = 3A
%
Specifications with boldface type are for full operating temperature range, the other type are for TJ=25ºC.
Anachip Corp.
www.anachip.com.tw
4/13
Rev.1.3 Oct 24, 2005
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Typical Performance Characteristics
AP1506 Efficiency v.s. Temperature
(Vin=12V,Vout=5V,Io=3A)
AP1506 Efficiency v.s. Temperature
(Vin=12V,Vout=3.3V,Io=3A)
78
83
82
81
80
79
78
77
76
75
77
76
75
74
73
72
71
70
74
73
72
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
AP1506 Saturation Voltage v.s. Temperature
(Vcc=12V,Vfb=0V,VSD=0)
AP1506 Switch Current Limit v.s. Temperature
(Vcc=12V,Vfb=0V)
1.6
1.5
1.4
5.5
3A
5
1.3
1.2
1.1
1
2A
4.5
4
1A
0.5A
0.9
0.8
0.7
3.5
3
-50
-30
-10
10
30
50
70
90
-50
-25
0
25
50
75
100
125
Temperature (TA)ꢀ(°C)
Temperature (TA) (°C)
AP1506 Supply Current v.s. Temperature
(Vcc=12V , No Load ,Von/off =0V(Switch ON) ,Von/off =5V(Switch OFF))
15
60
55
50
14
13
12
11
10
9
45
40
35
30
Switch OFF
8
Switch ON
7
6
5
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
5/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Typical Performance Characteristics (Continued)
AP1506 Threshold Voltage v.s. Temperature
AP1506 ON/OFF Current v.s. ON/OFF Voltage
(Vin=12V)
(Vcc=12V , Io=100mA)
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
0
3
6
9
12
15
18
21
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
ON/OFF Voltage (V)
AP1506 Frequency v.s. Temperature
(Vcc=12V , Io=500mA ,Vout=5V)
AP1506 Feedback Current v.s. Temperature
(Vcc=12V , Vout=5V,Vfb=1.3V)
170
165
160
155
150
145
140
10
0
-10
-20
-30
-40
-50
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
AP1506 Output Voltage v.s. Temperature
(Vin=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 (TA) (°C)
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
6/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Typical Application Circuit ( TO packages )
(1) Fixed Type Circuit
FB
12V
L1
4
3.3V/3A
Output Load
DC Input
33uH
Output
AP1506
-33
1
2
Vin
Inductor
5
3
D1
Schottky
Diode
SD
Gnd
Cin
Co
Capacitor
Capacitor
(2) Adjustable Type Circuit
R1
R2
FB
L1
47uH
12V
DC Input
4
5V/ 3A
Output Load
Output
1
AP1506
2
Vin
5
SD
3
Gnd
Cin
Capacitor
Co
Capacitor
D1
Schottky Diode
R1
R2
Vout = VFB×(1
+
)
VFB = 1.23V
R2 = 1K ~ 3K
(3) Delay Start Circuit
R2
R1
FB
L1
12V
4
5V/ 3A
Output Load
47uH
DC Input
Output
1
AP1506
2
Vin
CDELAY
0.1uF
5
3
SD
Gnd
Cin
Co
D1
Capacitor
Capacitor
RDELAY
10K
Schottky Diode
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
7/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Function Description
are all approximate and there are many factors that
can affect these temperatures. Higher ambient
temperatures require more heat sinking.
Pin Functions
+VIN
This is the positive input supply for the IC switching
regulator. A suitable input bypass capacitor must be
present at this pin to minimize voltage transients
and to supply the switching currents needed by the
regulator.
The TO-263 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 in2,
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 in2, 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.
Ground
Circuit ground.
Output
Internal switch. The voltage at this pin switches
between (+VIN – VSAT) and approximately – 0.5V,
with a duty cycle of approximately VOUT / VIN. To
minimize coupling to sensitive circuitry, the PC
board copper area connected to this pin should be
kept a minimum.
Feedback (FB)
The
AP1506
(TO-263
package)
junction
Senses the regulated output voltage to complete
the feedback loop.
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.
ON/OFF (SD)
Allows the switching regulator circuit to be
shutdown using logic level signals thus dropping
the total input supply current to approximately
150uA. 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 ON
wired to the ground pin.
/ OFF pin can be
Thermal Considerations
The AP1506 is available in two packages: a 5-pin
TO-220 and a 5-pin surface mount TO-263.
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 TO-220 package needs a heat sink under most
conditions. The size of the heatsink 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 (TO-220 package) operating as
a
buck-switching regulator in an ambient temperature
of 25oC (still air). These temperature rise numbers
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
8/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Function Description (Continued)
Package
thermal
resistance
and
junction
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.
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
Marking Information
(1) TO263-5L
(2) TO220-5L
( Top view )
( Top view )
Output Type:
Logo
1506: ADJ
Output Type:
Blank: normal
1506-33: 3.3V
1506-50: 5.0V
1506-12: 12V
1506-XX
Logo
1506: ADJ
L: Lead Free Package
YY WW X X
Blank: normal
L: Lead Free Package
1506-33: 3.3V
1506-50: 5.0V
1506-12: 12V
1506-XX
ID code
Xth week: 01~52
Year: "01" = 2001
"02" = 2002
YY WW X X
ID code
Xth week: 01~52
Year: "01" = 2001
"02" = 2002
(3) PDIP-8L
(Top view)
Output Type:
1506:ADJ
1506-33: 3.3V
1506-50: 5.0V
1506-12: 12V
Logo
Blank: normal
1506-XX
L: Lead Free Package
YY WW X X
ID code
Xth weed: 01~52
Year: "01"=2001
"02"=2002
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
9/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Package Information
(1) Package Type: TO220-5L
E
A
F
ΦP
b
C
e
J1
e1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
4.07
0.76
0.36
14.22
9.78
1.57
6.68
1.14
5.46
2.29
13.21
3.68
2.54
Nom.
4.45
0.89
0.50
14.86
10.16
1.71
6.81
1.27
6.16
2.74
13.97
3.81
2.73
Max.
4.82
1.02
0.64
15.50
10.54
1.85
6.93
1.40
6.86
3.18
14.73
3.94
2.92
Min.
Nom.
Max.
A
b
C
D
E
e
e1
F
H1
J1
L
Øp
Q
0.160
0.030
0.014
0.175
0.035
0.020
0.190
0.040
0.025
0.560
0.385
0.062
0.263
0.045
0.215
0.090
0.520
0.145
0.100
0.585
0.400
0.067
0.268
0.050
0.243
0.108
0.550
0.150
0.107
0.610
0.415
0.073
0.273
0.055
0.270
0.125
0.580
0.155
0.115
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
10/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Package Information(Continued)
(2) Package Type: TO263-5L
E
10.9
1.0
1.7
Land Pattern Recommendation (Unit: mm)
e
B
L1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
4.07
0.66
0.36
1.14
8.65
9.78
1.57
14.61
2.29
-
Nom.
4.46
0.84
0.50
1.27
9.15
10.16
1.71
15.24
2.54
-
Max.
4.85
1.02
0.64
1.40
9.65
10.54
1.85
15.88
2.79
2.92
Min.
0.160
0.026
0.014
0.045
0.341
0.385
0.062
0.575
0.090
-
Nom.
0.176
0.033
0.020
0.050
0.360
0.400
0.068
0.600
0.100
-
Max.
0.191
0.040
0.025
0.055
0.380
0.415
0.073
0.625
0.110
0.115
A
B
C
C2
D
E
e
L
L1
L2
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
11/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Package Information(Continued)
(3) Package Type: TO220-5L(R) Mechanical drawing
A
E
F
Q
H1
D
H2
d1
H3
d2
J1
b
J2
J3
e
J3
J2
A
J1
E
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
4.4
Nom.
4.6
Max.
4.7
Min.
Nom.
0.180
0.032
0.340
0.039
0.248
0.400
0.067
0.050
0.250
0.850
0.972
0.105
0.177
0.331
0.110
Max.
A
b
D
0.175
0.027
0.330
0.185
0.037
0.350
0.7
0.8
0.9
8.4
8.7
8.9
d1
d2
E
1.0
6.3
9.91
1.6
1.2
10.16
1.7
10.41
1.8
1.3
0.390
0.062
0.048
0.410
0.072
0.052
e
F
1.25
6.4
H1
H2
H3
J1
J2
J3
Q
20.8
23.9
21.6
24.7
2.7
22.4
25.5
0.820
0.942
0.880
1.002
3.7
2.5
4.5
5.3
3.0
0.147
0.100
0.207
0.120
8.4
2.8
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
12/13
This Anachip version datasheet is replaced
with Diodes Inc. datasheet AP1506
AP1506
150KHz, 3A PWM Buck DC/DC Converter
Package Information(Continued)
(4) Package Type: PDIP-8L
D
E-PIN O0.118 inch
E
(4X)
15
PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch
7
(4X)
C
eB
B
B1
e
S
B2
Dimensions in millimeters
Dimensions in inches
Symbol
Min.
-
Nom.
-
Max.
5.33
-
Min.
-
Nom.
-
Max.
0.210
-
A
A1
A2
B
0.38
3.1
-
0.015
0.122
0.014
0.055
0.032
0.008
0.355
0.300
0.242
-
-
3.30
0.46
1.52
0.99
0.25
9.27
7.94
6.35
2.54
3.3
3.5
0.130
0.018
0.060
0.039
0.010
0.365
0.313
0.250
0.100
0.130
0.350
0.033
0.138
0.022
0.065
0.045
0.014
0.375
0.325
0.258
-
0.36
1.4
0.56
1.65
1.14
0.36
9.53
8.26
6.55
-
B1
B2
C
0.81
0.20
9.02
7.62
6.15
-
2.92
8.38
0.71
D
E
E1
e
L
3.81
9.70
0.97
0.115
0.330
0.028
0.150
0.382
0.038
eB
S
8.89
0.84
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Oct 24, 2005
13/13
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