Diodes AP7333 User Manual
AP7333
300mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Features
• 300mA Low Dropout Regulator in 3-pin package
• Very low I
• Wide input voltage range: 2V to 6V
• Fixed output options: 1.0V to 3.3V
• PSRR: 65dB typical at 100Hz
• Fast start-up time: 80µs
• Stable with low ESR, 1µF ceramic output capacitor
• Excellent Load/Line Transient Response
• Low dropout: 300mV typical at 300mA
• Current limit protection
• Short circuit protection
• Thermal shutdown protection
• Ambient temperature range: -40ºC to 85°C
• SOT23 and SOT23R: Available in “Green” Molding
Compound (No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
over full load: 65µA
Q
Applications
• XDSL Router
• Wireless LAN Cards
• Desktop and Notebook Computers
• Battery Powered Equipments
• Mouse, Keyboards
Typical Application Circuit
Description
The AP7333 is a 300mA, fixed output voltage, low dropout linear
regulator. The device included pass element, error amplifier,
band-gap, current limit and thermal shutdown circuitry.
The characteristics of low dropout voltage and low quiescent
current make it suitable for low power applications, for example,
battery powered devices. The typical quiescent current is
approximately 65μA.
Built-in current-limit and thermal-shutdown functions prevent IC
from damage in fault conditions.
The AP7333 is available in SOT23 packages with different
pin-outs.
V
IN
IN
OUT
V
OUT
AP7333
1uF
1uF
GND
AP7333 Rev. 2 1 of 12 NOVEMBER 2009
www.diodes.com © Diodes Incorporated
Ordering Information
AP7333
300mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
AP7333 - XX XX G - 7
Output
10 : 1.0V
12 : 1.2V
Package Green
SA : SOT23
G : Green
SR : SOT23R
Packing
7 : Tape & Reel
15 : 1.5V
18 : 1.8V
20 : 2.0V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
Device Package Code
AP7333-XXSAG-7 SA SOT23 3000/Tape & Reel -7
AP7333-XXSRG-7 SR SOT23R 3000/Tape & Reel -7
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit o ur website at
http://www.diodes.com/datasheets/ap02001.pdf.
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
Packaging
(Note 2)
7” Tape and Reel
Quantity Part Number Suffix
Pin Assignment
(1) SOT23 (1) SOT23R
IN
OUT
( Top View )
1
2
3
GND
GND
OUT
( Top View )
1
2
3
IN
AP7333 Rev. 2 2 of 12 NOVEMBER 2009
www.diodes.com © Diodes Incorporated
300mA, Low Quiescent Current, Fast Transient
Pin Descriptions
Pin Name
IN 1 3
OUT 2 2
GND 3 1 Ground
Functional Block Diagram
Pin Number
SOT23 SOT23R
Voltage input pin. Bypass to ground through at least 1µF
capacitor
Voltage output pin. Bypass to ground through 1µF ceramic
capacitor
AP7333
Low Dropout Linear Regulator
Description
IN
Gate
Driver
Current Lim it
and Thermal
Shutdown
V
REF
OUT
R
R
GND
AP7333 Rev. 2 3 of 12 NOVEMBER 2009
www.diodes.com © Diodes Incorporated
AP7333
300mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Absolute Maximum Ratings
Symbol Parameter Ratings Units
ESD HBM Human Body Model ESD Protection 6 kV
ESD MM Machine Model ESD Protection 400 V
VIN Input Voltage 7 V
Continuous Load Current Internal Limited
TOP Operating Junction Temperature Range -40 ~ 125 °C
TST Storage Temperature Range -65 ~150 °C
PD Power Dissipation (Note 3)
TJ Maximum Junction Temperature 150 °C
SOT23 600 mW
SOT23R 540 mW
Recommended Operating Conditions
Symbol Parameter Min Max Unit
V
IN
I
OUT
T
A
Notes: 3. Ratings apply to ambient temperature at 25°C
4. The device maintains a stable, regulated output voltage without a load current.
Input voltage 2 6 V
Output Current (Note 4) 0 300 mA
Operating Ambient Temperature -40 85
°C
AP7333 Rev. 2 4 of 12 NOVEMBER 2009
www.diodes.com © Diodes Incorporated
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