Smart Voltage Regulator Peripheral Card Applications MC33565 Drop

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Smart Voltage Regulator Peripheral Card Applications MC33565 Drop

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Smart Voltage Regulator Peripheral Card Applications
MC33565 Dropout Regulator designed computer peripheral card applications complying with instantly available requirements specified ACPI objectives. MC33565 permits glitch-free transitions from "sleep" "active" system modes internal logic circuitry detect whether system being powered from motherboard main power supply 3.3V supply. MC33565 provides regulated output voltage 3.3V either internal drop 5.0V-to-3.3V voltage regulator external P-channel MOSFET, depending operating status system which card installed. During normal operating mode main supply available) 3.3V output provided from internal dropout regulator output current 200mA. When motherboard enters sleep mode, MC33565 operates from 3.3V supply routes current output external P-channel MOSFET bypass transistor controlled drive pin. result, output voltage provided peripheral card remains constant 3.3V even during transitions from sleep mode. MC33565 Features:
MC33565
INTELLIGENT REGULATOR WITH SMART BYPASS CONTROL
SEMICONDUCTOR TECHNICAL DATA
Output Regulated Over Temperature Output current 200mA Excellent Line Load Regulation Dropout Voltage Prevents reverse current flow during sleep mode Glitch-free transfer from sleep mode active mode Compatible with Instantly Available systems Evaluation Available: (P.N. MC33565EVK) Simplified Block Diagram
+3.3 SUFFIX PLASTIC PACKAGE CASE 751-06 (SO-8)
+3.3
Drive
MC33565
+3.3 Vout Sense
Compensation Hysteresis
Hyst Comp Driver Drive
External P-channel MOSFET
Pins Connected
ORDERING INFORMATION
Device +3.3 Vout MC33565D Type 3.3V Package SO-8
Detect
detect Vref
+3.3 Vout Sense
External
Motorola, Inc. 1999
6/99
MOTOROLA ANALOG DEVICE DATA
MC33565
MAXIMUM RATINGS 25°C, unless otherwise noted)
Parameter Input Voltage, Symbol Vmax Vmin Operating Ambient Temperature Operating Junction Temperature Lead Temperature (Soldering, seconds) Storage Temperature Range Package Thermal Resistance, Junction Ambient NOTES: Tstg RJA1 Value -0.5 +150 +150 Unit °C/W
Mounted recommended minimum FR4, 2-oz. copper circuit board.
ELECTRICAL SPECIFICATIONS(3)
Parameter Drive High Delay (Vin ramping CDrive measured from VthresHi VDrive Drive Delay (Vin ramping down) CDrive measured from VthresLo VDrive Symbol Unit
NOTES: (1.) Detect Thresholds Diagram. (2.) Recommended source impedance supply: 0.25W. This will ensure that Rsource Vhyst, thus avoiding driveout toggling during detect threshold transitions. (3.) Figure Application Block Diagram. (4.) Timing Diagram.
ASSIGNMENTS FUNCTIONS
NAME +3.3 Sense +3.3 Vout Drive DESCRIPTION This input supply Typical voltage Reserved Auxiliary input. Typical voltage Logic Power Gnd. Load-sense voltage input internal regulator. 3.3V output provided application circuit (output current sourced this from input.) This output drives P-channel MOSFET with 2000pF "effective" gate capacitance. Recommended device MGSF1P02ELT MOSFET. Drive active internal pull-up pull-down circuitry guarantee fast transitions.
DEVICE MARKING
Device MC33565D Type Sub-type Marking (1st Line) MC565
MOTOROLA ANALOG DEVICE DATA
MC33565
ELECTRICAL CHARACTERISTICS(1)
Characteristic Supply Voltage Range Reverse Leakage Current from Output VAux quiescent current quiescent current, operating Load Capacitance(2) Cload Symbol Ireverse Unit
REGULATOR OUTPUT
Output Voltage (4.3V 5.5V, 200mA) 25°C -5°C 150°C) In-to-Out Voltage (3.9V 4.3V, Vaux 3.3V) Voltage Voltage (Vin Line Regulation Load Regulation +3.3 Vout 3.267 3.234 Voutmax 3.30 3.30 3.333 3.366
DETECT
Threshold Voltage falling) High Threshold Voltage rising) Hysteresis VthresLo VthresHi VHyst 0.12 4.05 0.15 0.18
DRIVE OUTPUT
Output peak source Current VthresHi) Output peak sink Current VthresLo) Output Voltage (IoL VthresLo) High Output Voltage (IoH
NOTE: (-5°C<Ta<70°C, 4.3V<5V<5.5V, Cload 4.7µF unless otherwise noted) NOTE: 4.7µF minimum over temperature; 22µF recommended; 500mW maximum.
Ipeak Ipeak
V5-0.8
mVdc
MOTOROLA ANALOG DEVICE DATA
MC33565
+3.3
Compensation Hysteresis
Hyst Comp Driver Drive
External P-channel MOSFET
+3.3 Vout Detect detect Vref
+3.3 Vout Sense
External
Figure Functional Block Diagram
FUNCTIONAL DESCRIPTION
Input Blocking internal pass transistor regulator ensures that significant reverse current will flow from +3.3 Vout back input when input powered supply present. Volt Detect Internal circuitry detects presence input supply. When supply drops below given threshold, +3.3 bypass transistor external P-channel MOSFET) enabled. detect logic active throughout entire range ramp-up from 5.5V. Additionally, Drive signal never turned inappropriately during ramp-up supply. Also, +3.3 Vout never drops below 3.0V while above detect minimum threshold. Glitch-free Transfer design detect circuitry Drive control circuitry guarantees that
3.3V
+3.3 Vout will exceed output voltage specification listed table Operating Specifications even with ramping down extremes slew rates table Operating Specifications (provided device used with MGSF1P02ELT PMOS Drive along with minimum 4.7µF capacitor +3.3 Vout). Offset Voltage Performance ensure performance when external offsets present +3.3 power inputs, device been designed capable operating with either both these inputs rising from falling zero volts, with offsets 0.05V 0.9V inputs ramp down.
Motherboard/ Mainboard Slot
Drive +3.3 Vout
+3.3
MC33565
Sense
NIC/Card Circuitry
Figure Application Block Diagram
MOTOROLA ANALOG DEVICE DATA
MC33565
4.4V VTH(HI) VTH(LO) 3.8V 3.8V VHYST 4.4V
2.0V
2.0V
2.0V
2.0V
NOTE: rise fall times (10% 90%) 100µs.
NOTE: rise fall times (10% 90%) 100ns.
Figure Detect Thresholds Diagram
Figure Timing Diagram
Vout capacitor 20mW Phase Margin Gain (dB) Phase Margin Gain (dB)
Vout capacitor 20mW
Phase Margin
Phase Margin
Gain
Gain
Frequency (Hz)
Frequency (Hz)
NOTE: Vout capacitor 4.7µF over operating temperature range. Maximum permissable 500mW over operating temperature range.
Figure Predicted Gain Phase Zero Load Current
Figure Predicted Gain Phase Full Load Current
MOTOROLA ANALOG DEVICE DATA
MC33565
OUTLINE DIMENSIONS
SUFFIX PLASTIC PACKAGE CASE 751-06 (SO-8) ISSUE
NOTES: DIMENSIONING TOLERANCING ASME Y14.5M, 1994. DIMENSIONS MILLIMETER. DIMENSION INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.15 SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.127 TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 4.80 5.00 3.80 4.00 1.27 5.80 6.20 0.25 0.50 0.40 1.25
0.25
SEATING PLANE
0.10 0.25
MOTOROLA ANALOG DEVICE DATA
MC33565
NOTES
MOTOROLA ANALOG DEVICE DATA
MC33565
Motorola reserves right make changes without further notice products herein. Motorola makes warranty, representation guarantee regarding suitability products particular purpose, does Motorola assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters which provided Motorola data sheets and/or specifications vary different applications actual performance vary over time. operating parameters, including "Typicals" must validated each customer application customer's technical experts. Motorola does convey license under patent rights rights others. Motorola products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Motorola product could create situation where personal injury death occur. Should Buyer purchase Motorola products such unintended unauthorized application, Buyer shall indemnify hold Motorola officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Motorola negligent regarding design manufacture part. Motorola registered trademarks Motorola, Inc. Motorola, Inc. Equal Opportunity/Affirmative Action Employer. Mfax trademark Motorola, Inc. reach EUROPE Locations Listed: Motorola Literature Distribution; P.O. 5405, Denver, Colorado 80217. 1-303-675-2140 1-800-441-2447 Customer Focus Center: 1-800-521-6274 MfaxTM: RMFAX0@email.sps.mot.com TOUCHTONE 1-602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, Motorola Back System Canada ONLY 1-800-774-1848 King Street, Industrial Estate, N.T., Hong Kong. http://sps.motorola.com/mfax/ 852-26629298 HOME PAGE: http://motorola.com/sps/ JAPAN: Motorola Japan Ltd.; SPD, Strategic Planning Office, 141, 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan. 81-3-5487-8488
MC33565/D MOTOROLA ANALOG DEVICE DATA

Smart Voltage Regulator Peripheral Card Applications MC33565 Drop

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