AP1520SG-13 Diodes Inc, AP1520SG-13 Datasheet

IC CONV STEP DOWN PWM 2A 8-SOIC

AP1520SG-13

Manufacturer Part Number
AP1520SG-13
Description
IC CONV STEP DOWN PWM 2A 8-SOIC
Manufacturer
Diodes Inc
Type
Step-Down (Buck)r
Datasheet

Specifications of AP1520SG-13

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
0.8 ~ 23 V
Current - Output
2A
Frequency - Switching
300kHz
Voltage - Input
3.6 ~ 23 V
Operating Temperature
-25°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
AP1520SG-13
AP1520SGTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AP1520SG-13
Manufacturer:
DIODES
Quantity:
2 500
Part Number:
AP1520SG-13
Manufacturer:
DIODES/美台
Quantity:
20 000
Features
Applications
Typical Application Circuit
AP1520 Rev. 5
DS31174
Input Voltage: 3.6V to 23V
Output Voltage: 0.8V to V
Duty Ratio: 0% to 100% PWM Control
Oscillation Frequency: 300kHz typ.
Current Limit, Enable Function
Thermal Shutdown Function
Built-in Internal SW P-Channel MOS
SOP-8L Pb-Free Package
SOP-8L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Microprocessor Core Supply
Networking Power Supply
V
IN
680uF
C
IN
CVcc
0.1uF
R
3K
OCSET
CC
100K
C
0.1uF
R
Option
C
EN
EN
OCSET
Note: V
OCSET
V
cc
www.diodes.com
EN
R
OUT
B
AP1520
=0.7K~5K ohm
PWM CONTROL 2A STEP-DOWN CONVERTER
= V
1 of 9
FB
V
Output
x (1+R
SS
FB
General Description
AP1520 consists of step-down switching regulator with PWM
control. These devices include a reference voltage source,
oscillation circuit, error amplifier and internal PMOS.
AP1520 provides low-ripple power, high efficiency and excellent
transient characteristics. The PWM control circuit is able to vary
the duty ratio linearly from 0 up to 100%. This converter also
contains an error amplifier circuit. An enable function, an over
current protection and a short circuit protection are built inside,
and when OCP or SCP happens, the operation frequency will be
reduced from 300kHz to 30kHz. Also, an internal compensation
block is built in to minimum external component count.
With the addition of an internal P-channel Power MOS, a coil,
capacitors, and a diode connected externally, these ICs can
function as step-down switching regulators. They serve as ideal
power supply units for portable devices when coupled with the
SOP- 8L package, providing such outstanding features as low
current consumption. Since this converter can accommodate an
input voltage up to 23V, it is also suitable for the operation via an
AC adapter.
A
/R
B
)
D1
22uH
Optional
L1
C
C
1.3K
R
6.8K
R
A
B
+
-
0.1uF
C
+
-
©
AP1520
C
470uF
Diodes Incorporated
OUT
V
OUT
JULY 2009

Related parts for AP1520SG-13

AP1520SG-13 Summary of contents

Page 1

... Since this converter can accommodate an input voltage up to 23V also suitable for the operation via an AC adapter. V Output cc OCSET AP1520 FB OCSET Note (1 OUT =0.7K~5K ohm www.diodes.com AP1520 L1 V OUT 22uH 6.8K C Optional + + C C OUT 0.1uF 470uF - - R B 1.3K JULY 2009 © Diodes Incorporated ...

Page 2

... S : SOP-8L Package Device Code AP1520SL-13 S Lead-free AP1520SG-13 S Notes Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. Pin Assignments ...

Page 3

... PWM CONTROL 2A STEP-DOWN CONVERTER Output Oscillation Circuit PWM-Switched Control Circuit Parameter Parameter www.diodes.com AP1520 Reference Voltage Source with Soft Start + FB - 100uA Vss OCSET Rating Unit Internally limited mW o -20 to +125 C o -65 to +150 C Min Max Unit 1 - JULY 2009 © Diodes Incorporated ...

Page 4

... SOP-8L (Note www.diodes.com AP1520 Min Typ. Max Unit 0.784 0.8 0.816 V - 0.1 0.5 µA 2 µ 0.2 0.5 % 240 300 360 kHz kHz 2 0 µA - -10 - µ 105 µA 0 150 - ° °C - 110 150 mΩ 100 - 134 - C C/W JULY 2009 © Diodes Incorporated ...

Page 5

... AP1520 Load Regulation 5.10 5.09 5.08 5.07 5.06 5.05 5.04 5.03 5.02 5.01 5.00 0 Vout:5.0V Vout:3.3V 1.5 2 www.diodes.com AP1520 AP1520 Vin vs Vin (V) (Vin=12V) 1.0 2.0 3.0 4.0 Iout (A) JULY 2009 © Diodes Incorporated ...

Page 6

... OUTPUT VCC OCSET + EN - Operation function test AP1520 Rev. 5 DS31174 PWM CONTROL 2A STEP-DOWN CONVERTER (Continued out in open open FB + VSS - Feedback function test VSS - www.diodes.com AP1520 AP1520 Vout Ripple = 12V 3.3V out out OUTPUT FB A VCC OCSET EN VSS JULY 2009 © Diodes Incorporated ...

Page 7

... AP1520 − IN OUT OUT L = × × Δ =0.30A. The DC current rating of L ESR = × V ΔI RIPPLE L & large P (Power Dissipation), The dual Vcc and OCSET pin as closely as OCSET JULY 2009 © Diodes Incorporated ...

Page 8

... PWM CONTROL 2A STEP-DOWN CONVERTER ( Top View ) Lead Free G : Green AP1520 YY : Year : 08, 09,10 Week : 01~52 Internal Code All Dimensions Gauge Plane Seating Plane 0.62/0.82 Detail "A" 7°~9° 0.35max. 45° Detail "A" 0°/8° www.diodes.com AP1520 represents 52 and 53 week JULY 2009 © Diodes Incorporated ...

Page 9

... 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. ...

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