AP1507 ANACHIP [Anachip Corp], AP1507 Datasheet

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AP1507

Manufacturer Part Number
AP1507
Description
150KHz, 3A PWM Buck DC/DC Converter
Manufacturer
ANACHIP [Anachip Corp]
Datasheet

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150KHz, 3A PWM Buck DC/DC Converter
- Output voltage: 3.3V, 5V, 12V and adjustable
- Adjustable version output voltage range, 1.23V to
- 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
- TO252-5L packages
- Low power standby mode
- Built-in switching transistor on chip
- Simple High-efficiency step-down regulator
- On-card switching regulators
- Positive to negative converter
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.
output version
18V+4%
Pin Assignments
Features
Applications
Metal Tab GND
( Top View )
TO252-5L
5 SD
4 FB
3 Gnd
2 Output
1 V
IN
1/9
The AP1507 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 against over current operating of
the output switch. If current limit function occurred
and V
frequency will be reduced. The AP1507 series
operates 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 package is available in a 5-lead TO-252.
Output
Name
General Description
GND
Pin Descriptions
V
FB
SD
FB
IN
is down to 0.5V below, the switching
Operating voltage input
Switching output
Ground
Output voltage feedback control
ON /OFF Shutdown
Description
AP1507
Rev.1.1 Oct 29, 2004

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AP1507 Summary of contents

Page 1

... 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. General Description The AP1507 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 ...

Page 2

... Ordering Information Output version Blank : Adjustable -33 : 3.3V -50 : 5.0V -12 : 12V Block Diagram Current 1.235V Source Reference bias + Amp _ FB Anachip Corp. www.anachip.com.tw AP1507 Lead Free Package D5: TO252-5L Blank : Normal L : Lead Free Package SD 200mV 2.5V Start Regulator up Comp Comp Frequecy compen- _ Comp Pre-driver sation + ...

Page 3

... V =22V IN V =12V force driver off FB ON /OFF pin=5V V =22V IN Low (regulator ON) High (regulator OFF) V =2.5V (OFF) LOGIC =0.5V (ON) LOGIC Junction to TO252-5L case Junction to TO252-5L ambient 3/9 AP1507 Unit 0.5A LOAD Min. Typ. Max. Unit -50 -10 nA -100 127 150 173 ...

Page 4

... I =3A IN LOAD 8V < V < 22V IN 0.2A < I < 3A LOAD Efficiency V = 12V, I =3A IN LOAD 15V < V < 22V IN 0.2A < I < 3A LOAD Efficiency V = 16V LOAD 4/9 AP1507 Typ. Limit Unit V 1.23 1.193/ 1.18 V MIN 1.267/ 1.28 V MAX 3.168/ 3.135 3.3 V MIN 3.432/ 3.465 V MAX 4.8/ 4. MIN 5 ...

Page 5

... Temperature (TA) (°C) Anachip Corp. www.anachip.com.tw AP1507 Efficiency v.s. Temperature (Vin=12V,Vout=3.3V,Io=3A 110 130 150 -50 -30 -10 10 AP1507 Switch Current Limit v.s. Temperature 5.5 5 4.5 4 3.5 3 -50 -30 75 100 125 110 130 150 -50 -30 -10 10 ...

Page 6

... AP1507 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 - 100 120 140 160 Temperature (TA) (°C) Anachip Corp. www.anachip.com.tw AP1507 ON/OFF Current v.s. ON/OFF Voltage 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 110 130 150 AP1507 Feedback Current v.s. Temperature (Vcc=12V , Vout=5V,Vfb=1.3V -10 ...

Page 7

... 47uH Output 1 AP1507 Gnd D1 Schottky Diode R1 × 1.23V 47uH Output 1 AP1507 Gnd D1 R Schottky Diode DELAY 10K 7/9 AP1507 L1 3.3V/3A Output Load Co Capacitor 5V/ 3A Output Load Co Capacitor 5V/ 3A Output Load Co Capacitor Rev.1.1 Oct 29, 2004 ...

Page 8

... 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 could add heat to the board. double sided, 8/9 AP1507 (TO-252 package) junction regulator with all components junction temperature ...

Page 9

... REF. 0.65 0.80 0.020 0.50 0.60 0.016 2.30 2.40 0.087 0.52 0.58 0.018 0.08 0.15 0.000 1.20 1.50 0.035 5.50 5.59 0.213 9/9 AP1507 "01" = 2001 "02" = 2002 0.6 Nom. Max. 0.260 0.270 0.211 0.217 0.276 0.283 0.098 0.110 0.050 REF. 0.026 0.031 0.020 0.024 0.091 0.094 0.020 0.023 0.003 0.006 0.047 0.059 ...

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