MOTOROLA MC33264 Technical data

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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 µA
in the ON mode; 0.1 µA 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 Quiescent Current (0.3 µA in OFF Mode; 95 µA in ON Mode)

• Low Input–to–Output Voltage Dif ferential of 47 mV at 10 mA, and

131 mV at 50 mA

• Multiple Output Voltages A vailable

• Extremely Tight Line and Load Regulation

• Stable with Output Capacitance of Only

0.22 µF for 4.0 V, 4.75 V and 5.0 V Output V oltages

0.33 µF 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 TK1 15XXMC and LP2980

Representative Block Diagram

1

V

in

2

On/Off

3

On/Off

This device contains 37 active transistors.

This document contains information on a new product. Specifications and information herein
are subject to change without notice.

MOTOROLA ANALOG IC DEVICE DATA

1.23 V
V

ref

MC33264

Thermal and

Anti–Sat

Protection

R

int

52.5 k

8
V

out

7
Base

5
Adj

6
Gnd

LOW DROPOUT

MICROPOWER VOLTAGE

REGULATORS WITH

ON/OFF CONTROL

SEMICONDUCTOR

TECHNICAL DATA

D SUFFIX

PLASTIC PACKAGE

8

1

8

1

PIN CONNECTIONS

1

Input

2

On/Off

3

On/Off

4

N/C

(Top View)

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

 Motorola, Inc. 1997 Rev 1

Temperature Range

TA = – 40° to +85°C

CASE 751

(SO–8)

DM SUFFIX

PLASTIC PACKAGE

CASE 846A

(Micro–8)

8

Output

7

Base

6

Gnd

5

Adjust

Operating

Package

SO–8

Micro–8

1

MAXIMUM RATINGS

ÁÁÁ

ÁÁÁ

ÁÁÁ

ÁÁÁ

ÁÁÁ

Á

Á

Á

Á

Á

ÁÁÁ

Á
ÁÁÁ

ÁÁÁ

ÁÁÁ

(TC = 25°C, unless otherwise noted.)

Rating

Input Voltage
Power Dissipation and Thermal Characteristics

Maximum Power Dissipation P

Case 751 (SO–8) D Suffix

Thermal Resistance, Junction–to–Ambient R
Thermal Resistance, Junction–to–Case R

Case 846A (Micro–8) DM Suffix

Thermal Resistance, Junction–to–Ambient R
Output Current
Maximum Adjustable Output Voltage
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range

NOTE: ESD data available upon request.

MC33264

Symbol Value Unit

V

T

CC

θJA
θJC

θJA

I

O

V

T

T

stg

D

O
J
A

13

Vdc

Internally Limited W

180 °C/W

45 °C/W

240 °C/W
100

1.15 x V

nom

125

–40 to +85

–65 to +150

mA

Vdc

°C
°C
°C

ELECTRICAL CHARACTERISTICS (V

= 6.0 V, IO = 10 mA, CO = 1.0 µF, TJ = 25°C (Note 1), unless otherwise noted.)

in

Characteristic Symbol Min Typ Max Unit

Output Voltage (IO = 0 mA)

V

O

2.8 Suffix (VCC = 3.8 V) 2.74 2.8 2.86

3.0 Suffix (VCC = 4.0 V) 2.96 3.0 3.04

3.3 Suffix (VCC = 4.3 V) 3.23 3.3 3.37

3.8 Suffix (VCC = 4.8 V) 3.72 3.8 3.88

4.0 Suffix (VCC = 5.0 V) 3.92 4.0 4.08

4.75 Suffix (VCC = 5.75 V) 4.66 4.75 4.85

5.0 Suffix (VCC = 6.0 V) 4.9 5.0 5.1

Vin = (VO + 1.0) V to 12 V, IO < 60 mA,TA= –40° to +85°C

2.8 Suffix 2.7 – 2.9

3.0 Suffix 2.9 – 3.1

3.3 Suffix 3.18 – 3.42

3.8 Suffix 3.67 – 3.93

4.0 Suffix 3.86 – 4.14

4.75 Suffix 4.58 – 4.92

5.0 Suffix 4.83 – 5.17

Line Regulation (Vin = [VO + 1.0] V to 12 V, IO = 60 mA)

Reg

line

–

2.0

All Suffixes

Load Regulation (Vin = [VO + 1.0], IO = 0 mA to 60 mA)

Reg

load

–

16

All Suffixes

Dropout Voltage

VI – V

O

IO = 10 mA – 47 90
IO = 50 mA – 131 200
IO = 60 mA – 147 230

Quiescent Current

I

Q

ON Mode (Vin = [VO + 1.0] V, IO = 0 mA) – 95 150
OFF Mode – 0.3 2.0
ON Mode (Vin = [VO + 0.5] V, IO = 0 mA) [Note2] – 540 900

Ripple Rejection (Vin peak–to–peak = [VO + 1.5] to [VO + 5.5]

БББББББББББББББББ

V at f = 1.0 kHz)
Output Voltage Temperature Coefficient
Current Limit (Vin = [VO + 1.0], VO Shorted)
Output Noise Voltage (10 Hz to 100 kHz) (Note 3)

–

ÁÁÁ

TC

I

Limit

V

n

55

ÁÁ

–

100

65

ÁÁ

±120

150

CL = 1.0 µF – 110 –

CL = 100 µF – 46 –

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 µF capacitor connected across Pins 8 and 5.

10

25

–

ÁÁ

–
–

V

mV

mV

mV

µA

dB

ÁÁ

ppm/°C

mA

µVrms

2

MOTOROLA ANALOG IC DEVICE DATA

MC33264

ÁÁÁ

ÁÁÁ

ELECTRICAL CHARACTERISTICS (continued) (V

Characteristic UnitMaxTypMinSymbol

ON/OFF INPUTS

On/Off Input (Pin 3 Tied to Ground)

Logic “1” (Regulator ON) 2.4 – V

Logic “0” (Regulator OFF) 0 – 0.5
On/Off Input (Pin 2 Tied to Vin)

Logic “0” (Regulator ON) 0 – Vin – 2.4

Logic “1” (Regulator OFF) Vin – 0.2 – V
On/Off Pin Input Current (Pin 3 Tied to Ground)

V

= 2.4 V – 1.9 –

On/Off

On/Off Pin Input Current (Pin 2 Tied to Vin)

V

= Vin – 2.4 V – 12 –

On/Off

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 µF capacitor connected across Pins 8 and 5.

= 6.0 V, IO = 10 mA, CO = 1.0 µF, TJ = 25°C (Note 1), unless otherwise noted.)

in

V

On/Off

I

On/Off

DEFINITIONS

Dropout V oltage – The input/output voltage dif ferential 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 V oltage – The rms ac voltage at the output,
with constant load and no input ripple, measured over a
specified frequency range.

V

in

in

µA

5.0

1.0

, QUIESCENT CURRENT (mA)

Q

0.10

I

0.03

TA = 25°C
MC33264D–5.0

0.1

Figure 1. Quiescent Current

versus Load Current

1.0 10 100 1.0 2.0 3.0 4.0 5.0 6.0

I

, LOAD CURRENT (mA)

load

Figure 2. Output V oltage versus Input Voltage

6.0
TA = 25°C

5.0

MC33264D–5.0

, OUTPUT VOL TAGE (V)

V

4.0

3.0

2.0

O

1.0

0

0

RL = 5.0 k

RL = 100

Vin, INPUT VOLTAGE (V)

Ω

MOTOROLA ANALOG IC DEVICE DATA

3