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MC33264 Micropower smallCAPTM Voltage Regulators with On/Off Control
The MC33264 series are micropower low dropout voltage regulators available in SO-8 and Micro-8 surface mount packages and a wide range of output voltages. These devices feature a very low quiescent current (100 A in the ON mode; 0.1 A in the OFF mode), and are capable of supplying output currents up to 100 mA. Internal current and thermal limiting protection is provided. They require only a small output capacitance for stability. Additionally, the MC33264 has either active HIGH or active LOW control (Pins 2 and 3) that allows a logic level signal to turn-off or turn-on the regulator output. Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable. MC33264 Features:
LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
SEMICONDUCTOR TECHNICAL DATA
* * * * * * * *
8 1
Low Quiescent Current (0.3 A in OFF Mode; 95 A in ON Mode) Low Input-to-Output Voltage Differential of 47 mV at 10 mA, and 131 mV at 50 mA Multiple Output Voltages Available Extremely Tight Line and Load Regulation Stable with Output Capacitance of Only 0.22 F for 4.0 V, 4.75 V and 5.0 V Output Voltages 0.33 F for 2.8 V, 3.0 V, 3.3 V and 3.8 V Output Voltages Internal Current and Thermal Limiting Logic Level ON/OFF Control Functionally Equivalent to TK115XXMC and LP2980
8
D SUFFIX PLASTIC PACKAGE CASE 751 (SO-8)
1
DM SUFFIX PLASTIC PACKAGE CASE 846A (Micro-8)
PIN CONNECTIONS
Input 1 2 3 4 (Top View) 8 Output 7 Base 6 Gnd 5 Adjust
Representative Block Diagram
1 Vin Thermal and Anti-Sat Protection 8 Vout 7 Base Rint
On/Off On/Off N/C
2 On/Off
ORDERING INFORMATION
Device MC33264D-2.8 MC33264D-3.0 MC33264D-3.3 MC33264D-3.8 MC33264D-4.0 MC33264D-4.75 MC33264D-5.0 MC33264DM-2.8 MC33264DM-3.0 MC33264DM-3.3 MC33264DM-3.8 MC33264DM-4.0 MC33264DM-4.75 MC33264DM-5.0
(c) Motorola, Inc. 1998
Operating Temperature Range Package
5 Adj 1.23 V Vref 3 On/Off This device contains 37 active transistors. MC33264 52.5 k 6 Gnd
SO-8
TA = - 40 to +85C
Micro-8
Rev 3
MOTOROLA ANALOG IC DEVICE DATA
1
MC33264
MAXIMUM RATINGS (TC = 25C, unless otherwise noted.)
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AAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAA A AAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAA A AAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A
AAA A AA AAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA
Input Voltage VCC PD 13 Vdc W
Rating
Symbol
Value
Unit
AAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAAAAAAAAA A AA
Output Current IO 100 mA Maximum Adjustable Output Voltage Operating Junction Temperature Operating Ambient Temperature Storage Temperature Range VO TJ 1.15 x Vnom 125 Vdc C C C TA -40 to +85 Tstg -65 to +150
NOTE: ESD data available upon request.
Power Dissipation and Thermal Characteristics Maximum Power Dissipation Case 751 (SO-8) D Suffix Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case Case 846A (Micro-8) DM Suffix Thermal Resistance, Junction-to-Ambient
Internally Limited 180 45 240
RJA RJC RJA
C/W C/W C/W
ELECTRICAL CHARACTERISTICS (Vin = 6.0 V, IO = 10 mA, CO = 1.0 F, TJ = 25C (Note 1), unless otherwise noted.)
Characteristic Output Voltage (IO = 0 mA) 2.8 Suffix (VCC = 3.8 V) 3.0 Suffix (VCC = 4.0 V) 3.3 Suffix (VCC = 4.3 V) 3.8 Suffix (VCC = 4.8 V) 4.0 Suffix (VCC = 5.0 V) 4.75 Suffix (VCC = 5.75 V) 5.0 Suffix (VCC = 6.0 V) Vin = (VO + 1.0) V to 12 V, IO < 60 mA,TA= -40 to +85C 2.8 Suffix 3.0 Suffix 3.3 Suffix 3.8 Suffix 4.0 Suffix 4.75 Suffix 5.0 Suffix Line Regulation (Vin = [VO + 1.0] V to 12 V, IO = 60 mA) All Suffixes Load Regulation (Vin = [VO + 1.0], IO = 0 mA to 60 mA) All Suffixes Dropout Voltage IO = 10 mA IO = 50 mA IO = 60 mA Symbol VO Min 2.74 2.96 3.23 3.72 3.92 4.66 4.9 2.7 2.9 3.18 3.67 3.86 4.58 4.83 Regline - - Typ 2.8 3.0 3.3 3.8 4.0 4.75 5.0 - - - - - - - 2.0 16 Max 2.86 3.04 3.37 3.88 4.08 4.85 5.1 2.9 3.1 3.42 3.93 4.14 4.92 5.17 10 25 mV mV mV Unit V
Regload VI - VO
- - - - - -
47 131 147 95 0.3 540 65
90 200 230 150 2.0 900 - - - - -
Quiescent Current ON Mode (Vin = [VO + 1.0] V, IO = 0 mA) OFF Mode ON Mode (Vin = [VO + 0.5] V, IO = 0 mA) [Note2]
IQ
A
Ripple Rejection (Vin peak-to-peak = [VO + 1.5] to [VO + 5.5] V at f = 1.0 kHz) Output Voltage Temperature Coefficient
-
55 -
dB
TC
120 150 110 46
ppm/C mA
Current Limit (Vin = [VO + 1.0], VO Shorted)
ILimit Vn
100 - -
Output Noise Voltage (10 Hz to 100 kHz) (Note 3) CL = 1.0 F CL = 100 F
Vrms
NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. Quiescent current is measured where the PNP pass transistor is in saturation. VCE = -0.5 V guarantees this condition. 3. Noise tests on the MC33264 are made with a 0.01 F capacitor connected across Pins 8 and 5.
2
MOTOROLA ANALOG IC DEVICE DATA
MC33264
ELECTRICAL CHARACTERISTICS (continued) (Vin = 6.0 V, IO = 10 mA, CO = 1.0 F, TJ = 25C (Note 1), unless otherwise noted.)
Characteristic ON/OFF INPUTS Symbol Min Typ Max Unit
IQ, QUIESCENT CURRENT (mA)
1.0
TA = 25C MC33264D-5.0
VO, OUTPUT VOLTAGE (V)
AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A AAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAA A
On/Off Input (Pin 3 Tied to Ground) Logic "1" (Regulator ON) Logic "0" (Regulator OFF) On/Off Input (Pin 2 Tied to Vin) Logic "0" (Regulator ON) Logic "1" (Regulator OFF) VOn/Off V 2.4 0 - - - - Vin 0.5 0 Vin - 0.2 - - Vin - 2.4 Vin - - On/Off Pin Input Current (Pin 3 Tied to Ground) VOn/Off= 2.4 V On/Off Pin Input Current (Pin 2 Tied to Vin) VOn/Off = Vin - 2.4 V IOn/Off A 1.9 12
NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. Quiescent current is measured where the PNP pass transistor is in saturation. VCE = -0.5 V guarantees this condition. 3. Noise tests on the MC33264 are made with a 0.01 F capacitor connected across Pins 8 and 5.
DEFINITIONS
Dropout Voltage - The input/output voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 100 mV below its nominal value (which is measured at 1.0 V differential), dropout voltage is affected by junction temperature, load current and minimum input supply requirements. Line Regulation - The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. Load Regulation - The change in output voltage for a change in load current at constant chip temperature. Maximum Power Dissipation - The maximum total device dissipation for which the regulator will operate within specifications. Quiescent Current - Current which is used to operate the regulator chip and is not delivered to the load. Output Noise Voltage - The rms ac voltage at the output, with constant load and no input ripple, measured over a specified frequency range.
Figure 1. Quiescent Current versus Load Current
5.0 6.0 5.0 4.0
Figure 2. Output Voltage versus Input Voltage
TA = 25C MC33264D-5.0
RL = 5.0 k 3.0 2.0 1.0 0 0 RL = 100
0.10 0.03 0.1
1.0
10
100
1.0
2.0
3.0
4.0
5.0
6.0
Iload, LOAD CURRENT (mA)
Vin, INPUT VOLTAGE (V)
MOTOROLA ANALOG IC DEVICE DATA
3
MC33264
Figure 3. Input Current versus Input Voltage
1000 VO, OUTPUT VOLTAGE (V) 800 600 400 200 0 0 No Load TA = 25C MC33264D-5.0 5.04 5.03 I , INPUT CURRENT (A) in 5.02 5.01 5.00 4.99 4.98 4.97 2.0 4.0 6.0 8.0 10 12 4.96 -55 -25 0 25 50 75 100 125 IO = 10 mA TA = 25C MC33264D-5.0
Figure 4. Output Voltage versus Temperature
Vin, INPUT VOLTAGE (V)
TA, AMBIENT TEMPERATURE (C)
Figure 5. Dropout Voltage versus Output Current
240 V I - VO, DROPOUT VOLTAGE (mV) 200 160 120 80 40 0 0.3 RL = 40 to 50 k CL = 1.0 F TA = 25C MC33264D-5.0
V I - VO, DROPOUT VOLTAGE (mV) RL= 100 to 500
Figure 6. Dropout Voltage versus Temperature
300 250 200 RL = 5.0 k 150 100 50 -50 40 35 30 150 RL = 5.0 k TA = 25C MC33264D-5.0 55 RL = 100 50 45 V I - VO, DROPOUT VOLTAGE (mV) RL= 5.0 k
RL = 500
1.0
10 IO, OUTPUT CURRENT (mA)
100
400
0
50 TA, TEMPERATURE (C)
100
APPLICATION INFORMATION
Introduction The MC33264 regulators are designed with internal current limiting and thermal shutdown making them user-friendly. These regulators require only 0.33 F (or greater) capacitance between the output terminal and ground for stability for 2.8 V, 3.0 V, 3.3 V and 3.8 V output voltage options. Output voltage options of 4.0 V, 4.75 V and 5.0 V require only 0.22 F for stability. The output capacitor must be mounted as close to the MC33264 as possible. If the output capacitor must be mounted further than two centimeters away from the MC33264, then a larger value of output capacitor may be required for stability. A value of 0.68 F or larger is recommended. Most types of aluminum, tantalum or multilayer ceramic will perform adequately. Solid tantalums or appropriate multilayer ceramic capacitors are recommended for operation below 25C. A bypass capacitor is recommended across the MC33264 input to ground if more than 4.0 inches of wire connects the input to either a battery or power supply filter capacitor. On/Off Control On/Off control of the regulator may be accomplished in either of two ways. Pin 3 may be tied to circuit ground and a positive logic control applied to Pin 2. The regulator will be turned on by a positive (>2.4 V) level, typically 5.0 V with respect to ground, sourcing a typical current of 6.0 A. The regulator will turn off if the control input is a logic "0" (<0.5 V). Alternatively, Pin 2 may be tied to the regulator input voltage and a negative logic control applied to Pin 3. The regulator will be turned on when the control voltage is less than Vin - 2.4 V, sinking a typical current of 18 A when Vin = 6.0 V. The regulator is off when the control input is open or greater than Vin - 0.2 V. Programming The Output Voltage The MC33264 output voltage is automatically set using its internal voltage divider. Alternatively, it may be programmed within a typical 15% range of its preset output voltage. An external pair of resistors is required, as shown in Figure 7.
4
MOTOROLA ANALOG IC DEVICE DATA
MC33264
Figure 7. Regulator Output Voltage Trim
Vin 3.3 F 1 Control Input 2 Vin On/Off Vout Base 3 8 3.3 F Vout 3.0, 3.3 or 5.0 V N/C R1 N/C Adj 5 0.01
7
On/Off Gnd 6
4
R2
The complete equation for the output voltage is: V out
+Vref 1 ) R1 )IFB R1 R2
where Vref is the nominal 1.235 V reference voltage and IFB is the feedback pin bias current, nominally -20 nA. The minimum recommended load current of 1.0 A forces an upper limit of 1.2 M on the value of R2, if the regulator must work with no load. IFB will produce a 2% typical error in Vout which may be eliminated at room temperature by adjusting R1. For better accuracy, choosing R2 = 100 K reduces this error to 0.17% while increasing the resistor program current to 12 A. Output Noise In many applications it is desirable to reduce the noise present at the output. Reducing the regulator bandwidth by
increasing the size of the output capacitor is the only method for reducing noise. Noise can be reduced fourfold by a bypass capacitor across R1, since it reduces the high frequency gain from 4 to unity for the MC33264D-5.0. Pick C BYPASS
+ 2 R1 x1 200 Hz
or about 0.01 F. When doing this, the output capacitor must be increased to 3.3 F to maintain stability. These changes reduce the output noise from 430 V to 100 Vrms for a 100 kHz bandwidth for the 5.0 V output device. With the bypass capacitor added, noise no longer scales with output voltage so that improvements are more dramatic at higher output voltages.
TYPICAL APPLICATIONS
Figure 8. Lithium Ion Battery Cell Charger
Unregulated Input 6.0 to 10 Vdc 1 Vin On/Off Vout 7 0.1 Base MC33264D-5.0 3 On/Off 4 N/C N/C 0.22 50 k 200 k 1% Lithium Ion Rechargeable Cell
2 Control
8
1N4001
4.2 V 0.15 V
100 k 1%
Gnd 6 Ground
Adj 5
MOTOROLA ANALOG IC DEVICE DATA
5
MC33264
Figure 9. Low Drift Current Source
+V = 4.0 to 12 V IL Load IL = 1.23/R
1 2 Control On/Off Vin Vout Base 3 On/Off Gnd 6 5 Adj 7 N/C 4 N/C 8
0.1
R
1.0 F
Figure 10. 2.0 Ampere Low Dropout Regulator
+Vin Current Limit Section 1000 F
680
470
0.05
2N3906
2N3906
120 k TIP32B 0.33 1 Vin On/Off Vout
2
8
Base MC33264 220 3 On/Off
7 4
N/C 4.7 F Tant R1 100 F Vout @ 2.0 A
N/C 0.01
75 k
0.033
Gnd 6 5
Adj
R2
6
MOTOROLA ANALOG IC DEVICE DATA
MC33264
Figure 11. Low Battery Disconnect
22.1 k 100 k 2
31.6 k
6.0 V Lead-Acid Battery
MC34164P-5
1
5 On/Off
1 Vin Vout
8 0.1
Main V+ Memory V+
3 3
Base MC33264 On/Off
2 4 N/C
20
Gnd 4 5
Adj
R2 3.0 k R1 1.0 k
1.0 F
NiCad Backup Battery
Figure 12. RF Amplifier Supply
1.0 0.1 VBB Double 3 11 1.0 VBB Triple 9 Tx On Input 13 On/Off Idle Mode Input 6 Gnd Charge Pump Negative Generator (-2.5 V or -4.0 V) 7 5 VSS Output 4 RF In 1.0 1N5819 0.22 100 0.1 Power Amplifier RF Out 12 0.1 2 1 VCC 14 8 MC33169 Gate Drive Output 2 On/Off 1 Vin Vout 8 0.33 100 F VBattery 7.0 V 200 TIP32B
VBB Generator (Voltage Tripler)
Priority Management Sense
Base MC33264 3 On/Off
7 N/C 4 N/C
10 Sense Input
Gnd 6 5
Adj
3.0 k 0.01 5.0 V @ 0.5 A 1.0 k 4.7 F Tant 100 F
MOTOROLA ANALOG IC DEVICE DATA
7
MC33264
OUTLINE DIMENSIONS
D SUFFIX PLASTIC PACKAGE CASE 751-05 (SO-8) ISSUE R
5
A
8
D
C H 0.25
M
E
1 4
B
M
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A A1 B C D E e H h L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.18 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_
B C
e A
SEATING PLANE
h
X 45 _
q
0.10 A1 0.25 B
M
L CB
S
A
S
q
-A-
DM SUFFIX PLASTIC PACKAGE CASE 846A-02 (Micro-8) ISSUE C -B-
K
PIN 1 ID
G D 8 PL 0.08 (0.003)
M
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. MILLIMETERS MIN MAX 2.90 3.10 2.90 3.10 --- 1.10 0.25 0.40 0.65 BSC 0.05 0.15 0.13 0.23 4.75 5.05 0.40 0.70 INCHES MIN MAX 0.114 0.122 0.114 0.122 --- 0.043 0.010 0.016 0.026 BSC 0.002 0.006 0.005 0.009 0.187 0.199 0.016 0.028
TB
S
A
S DIM A B C D G H J K L
-T-
SEATING PLANE
0.038 (0.0015) H
C J L
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 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.; 8B Tai Ping Industrial Park, Motorola Fax Back System - US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 - http://sps.motorola.com/mfax/ 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
8
MC33264/D MOTOROLA ANALOG IC DEVICE DATA

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