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AP7363

Document number: DS35059 Rev. 8 - 2

1 of 14

www.diodes.com

December 2012

P7363

1.5A LOW QUIESCENT CURRENT, FAST TRANSIENT

ULTRA-LOW DROPOUT LINEAR REGULATOR

Description

The AP7363 is a 1.5A adjustable output voltage linear regulator with

ultra-low dropout. The device includes pass element, error amplifier,

band-gap, current limit and thermal shutdown circuitry.

The characteristics of low dropout voltage and fast transient response

to step changes in load make it suitable for low voltage

microprocessor applications. The typical quiescent current is

approximately 0.5mA and changes little with load current. The built-in

current-limit and thermal-shutdown functions prevent IC from damage

in fault conditions.

This device is available in U-DFN2030-8, SO-8EP, SOT223 and

TO252 packages.

Features

• 1.5A ultra-low dropout linear regulator

• Ultra-low dropout: 190mV at 1.5A

• Stable with 10µF input/output capacitor, any types

• Wide input voltage range: 2.2V to 5.5V

• Adjustable output voltage: 0.6V to 5.0V

• Fixed output options: 1V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V

• Low ground pin current

• 25nA quiescent current in shutdown mode

• V

ADJ

accuracy of ±1.5% @ +25°C

• V

ADJ

accuracy of ±3% over line, load and temperature

• Excellent Load/Line Transient Response

• Current limit and thermal shutdown protection

• Ambient temperature range: -40°C to +85°C

• U-DFN2030-8, SO-8EP, SOT223 and TO252: Available in

“Green” Molding Compound (No Br, Sb)

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

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

Applications

• ASIC power supplies in printers, graphics cards, DVD players,

STBs, routers, etc

• FPGA and DSP core or I/O power supplies

• SMPS regulator

• Conversion from 3.3V or 5V rail

Pin Assignments

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 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.

OUTOUTOUT

ADJ/

IN INGND

3214

6785

U-DFN2030-8

(Top View)

GND

ADJ/NC

OUT

SO-8EP

(Top View)

SOT223

(Fixed Output)

OUT

GND (TAB)

(Top View)

TO252

GND

Summary of content (14 pages)

PAGE 1
AP7363 1.5A LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Description Pin Assignments The AP7363 is a 1.5A adjustable output voltage linear regulator with (Top View) ultra-low dropout. The device includes pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry.
PAGE 2
AP7363 Typical Applications Circuit VIN VOUT IN VIN VOUT OUT IN AP7363 OUT AP7363 10µF 10µF R1 10µF 10µF ADJ GND GND R2 Fixed Output Adjustable Output ⎛ R ⎞ VOUT = VREF⎜⎜1+ 1 ⎟⎟ where R2 ≤ 10kΩ ⎝ R2 ⎠ Pin Descriptions Pin Number Pin Name GND IN OUT SOT223 TO252 2 1 3 U-DFN2030-8 SO-8EP 1 2, 3, 4 5, 6, 7 ADJ NA 8 NC NA 8 EP/TAB — — Function Ground. Voltage input pin. Voltage output pin.
PAGE 3
AP7363 Absolute Maximum Ratings (cont.) (@TA = +25°C, unless otherwise specified.) Symbol ESD HBM ESD MM Parameter Human Body Model ESD Protection Machine Model ESD Protection Ratings 2000 200 Unit V V VIN Input Voltage -0.3 to +6.0 V VOUT OUT Voltage -0.3 to VIN +0.3 V IOUT Continuous Load Current Internal Limited TST Storage Temperature Range TJ Maximum Junction Temperature -65 to +150 °C 150 °C Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.
PAGE 4
AP7363 Electrical Characteristics (@TA = +25°C, VIN = 3.3V, IOUT = 10mA, CIN = 10µF, COUT = 10µF, unless otherwise specified.) Minimum and maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TA = +25°C, and are provided for reference purposes only. Symbol Parameter Test Conditions Min Typ Max Unit VADJ ADJ Pin Voltage VIN = VIN-MIN to VIN-MAX, IOUT = 10mA to 1.
PAGE 5
AP7363 Typical Performance Characteristics (@TJ = +25°C, VIN = 2.7V, CIN = 10µF, COUT = 10µF, IOUT = 10mA, VOUT = 1.8V.) 10k 10k COUT = 10µF CER COUT = 10µF NOISE (nV/√Hz) NOISE (nV/√Hz) 1k 100 10 100 1000 10k FREQUENCY (Hz) Noise Density 1k 100 10 100 100k 1000 10k FREQUENCY (Hz) Noise Density 100k 2 3 2.5 VOUT (V) IGND (mA) 2 1.5 1 25°C 125°C 1 -40°C 0.5 0 0 0.5 1 0 1.5 0 ILOAD (A) IGND vs. Load Current 0.615 2 VIN (V) Turn-On Characteristics 3 0.
PAGE 6
AP7363 Typical Performance Characteristics (cont.) (@TJ = +25°C, VIN = 2.7V, CIN = 10µF, COUT = 10µF, IOUT = 10mA, VOUT = 1.8V.) Turn-On Time Turn-On Time VOUT = 1.2V (500mV/div) IL = 1.5A, COUT = 10μF CER VOUT = 1.2V (500mV/div) IL = 0A, COUT = 10μF CER VIN = 3.0V (2V/div) VIN = 3.0V (2V/div) Time (10μs/div) Time (10μs/div) Load Transient Response 90 VIN = 3.3V COUT =10μF CER VOUT = 1.8V (50mV/div) REJECTION RATIO (dB) 80 70 60 50 40 30 20 10 ILOAD = 100mA to 1.5A (1A/div) VIN = 3.
PAGE 7
AP7363 Application Note Input Capacitor A minimum 2.2μF ceramic capacitor is recommended between IN and GND pins to decouple input power supply glitch and noise. The amount of the capacitance may be increased without limit. Larger input capacitor like 10μF will provide better load transient response. This input capacitor must be located as close as possible to the device to assure input stability and reduce noise. For PCB layout, a wide copper trace is required for both IN and GND pins.
PAGE 8
AP7363 Application Note (cont.) Stability and Phase Margin Any regulator which operates using a feedback loop must be compensated in such a way as to ensure adequate phase margin, which is defined as the difference between the phase shift and -180 degrees at the frequency where the loop gain crosses unity (0 dB). For most LDO regulators, the ESR of the output capacitor is required to create a zero to add enough phase lead to ensure stable operation.
PAGE 9
AP7363 Application Note (cont.) Power Dissipation The device power dissipation and proper sizing of the thermal plane that is connected to the thermal pad is critical to avoid thermal shutdown and ensure reliable operation.
PAGE 10
AP7363 Marking Information (cont.) (2) SO-8EP (3) SOT223 (4) TO252 AP7363 Document number: DS35059 Rev. 8 - 2 10 of 14 www.diodes.
PAGE 11
AP7363 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (1) U-DFN2030-8 A A1 A3 U-DFN2030-8 Dim Min Max Typ A 0.57 0.63 0.60 A1 0 0.05 0.02 A3 0.15 b 0.20 0.30 0.25 D 1.95 2.05 2.00 D2 1.40 1.60 1.50 e 0.50 E 2.95 3.05 3.00 E2 1.50 1.70 1.60 L 0.35 0.45 0.40 Z 0.125 All Dimensions in mm Seating Plane D L e (Pin #1 ID) C'0.
PAGE 12
AP7363 Package Outline Dimensions (cont.) (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (3) SOT223 SOT223 Dim Min Max Typ A 1.55 1.65 1.60 A1 0.010 0.15 0.05 b1 2.90 3.10 3.00 b2 0.60 0.80 0.70 C 0.20 0.30 0.25 D 6.45 6.55 6.50 E 3.45 3.55 3.50 E1 6.90 7.10 7.00 e — — 4.60 e1 — — 2.30 L 0.85 1.05 0.95 Q 0.84 0.94 0.
PAGE 13
AP7363 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. (1) U-DFN2030-8 X2 Y C Dimensions Y2 C G X X1 X2 Y Y1 Y2 Y1 X1 Value (in mm) 0.500 0.250 0.350 1.500 1.850 0.600 1.600 3.300 G Pin1 X (2) SO-8EP X2 Dimensions C X X1 X2 Y Y1 Y2 Y1 Y2 X1 Value (in mm) 1.270 0.802 3.502 4.612 1.505 2.613 6.500 Y C X (3) SOT223 X1 Y1 Dimensions X1 X2 Y1 Y2 C1 C2 C1 Y2 Value (in mm) 3.3 1.2 1.6 1.6 6.4 2.
PAGE 14
AP7363 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.