MOTOROLA MC33765DTB-030, MC33765DTB-30R2, MC33765DTBR2, MC33765DTB Datasheet

 Semiconductor Components Industries, LLC, 2000

April, 2000 – Rev. 2

1 Publication Order Number:

MC33765/D

MC33765

V ery Low Dropout/ Ultra Low Noise 5 Outputs V oltage Regulator

The MC33765 is an ultra low noise, very low dropout voltage regulator with five independent outputs which is available in TSSOP 16 surface mount package.

The MC33765 is available in 2.8 V. The output voltage is the same for all five outputs but each output is capable of supplying different currents up to 150 mA for output 4. The device features a very low dropout voltage (0.11 V typical for maximum output current), very low quiescent current (5.0 mA maximum in OFF mode, 130 mA typical in ON mode) and one of the output (output 3) exhibits a very low noise level which allows the driving of noise sensitive circuitry. Internal current and thermal limiting protections are provided.

Additionally , the MC33765 has an independent Enable input pin for each output. It includes also a common Enable pin to shutdown the complete circuit when not used. The Common Enable pin has the

highest priority over the five independent Enable input pins.

The voltage regulators VR1, VR2 and VR3 have a common input voltage pin VCC1.

The other voltage regulators VR4 and VR5 have a common input voltage pin VCC2.

• Five Independent Outputs at 2.8V Typical, based upon voltage

version

• Internal Trimmed Voltage Reference

• V

out

Tolerance ±3.0% over the Temperature Range –40°C to +85°C

• Enable Input Pin (Logic–Controlled Shutdown) for Each of the Five

Outputs

• Common Enable Pin to Shutdown the Whole Circuit

• Very Low Dropout Voltage (0.11 V Typical for Output 1, 2, 3 and 5;

0.17 V Typical for Output 4 at Maximum Current)

• Very Low Quiescent Current (Maximum 5.0 µA in OFF Mode,

130 µA Typical in ON Mode)

• Ultra Low Noise for VR3 (30 µV RMS Max, 100 Hz < f < 100 kHz)

• Internal Current and Thermal Limit

• 100 nF for VR1, VR2, VR4 and VR5 and 1.0 µF for VR3 for

Stability

• Supply Voltage Rejection: 60 dB (Typical) @ f = 1.0 kHz

Device Package Shipping

ORDERING INFORMATION

MC33765DTB TSSOP16 96 Units/Rail MC33765DTBR2 TSSOP16

TSSOP–16

DTB SUFFIX

CASE 948F

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2500 Units/Reel

MARKING

DIAGRAMS

PIN CONNECTIONS

116

15 14 13 12 11 10

2 3 4 5 6 7 8

(Top View)

Bypass Common Enable On/Off V–Reg. 1

GND

Not Connected

Output V–Reg. 5

MC33765

On/Off V–Reg. 2 On/Off V–Reg. 3 On/Off V–Reg. 4 On/Off V–Reg. 5 VCC2

Output V–Reg. 4

Output V–Reg. 3

Output V–Reg. 2

Output V–Reg. 1

VCC1

MC33

765

ALYW

A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W= Work Week

MC33765

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Enable

Current

Limit

Temp.

Shut.

Enable

Current

Limit

Temp.

Shut.

Enable

Current

Limit

Temp.

Shut.

Enable

Current

Limit

Temp.

Shut.

Enable

Current

Limit

Temp.

Shut.

Common

Enable

–

Simplified Block Diagram

330 nF

OUT

VCC2

(14)

100 nF

OUT

(13)

100 nF

OUT

(12)

1.0 mF

OUT

(11)

100 nF

OUT

(9)

100 nF

VCC1

VCC2

(8)

GND

(7)

ON/OFF 5

(6)

ON/OFF 4

(5)

ON/OFF 3

VCC1

(4)

ON/OFF 2

BYPASS

(3)

ON/OFF 1

Voltage

Reference

1.25 V

(15) (2)CE

100 nF

(10)

MC33765

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MAXIMUM RATINGS

Rating Symbol Pin # Value Unit

Power Supply Voltage

ÁÁÁÁ

5.3

ÁÁÁ

Thermal Resistance Junction–to–Air

ÁÁÁÁ

140

ÁÁÁ

°C/W

Operating Ambient Temperature

ÁÁÁÁ

–40 to +85

ÁÁÁ

°C

Maximum Operating Junction Temperature

ÁÁÁÁ

125

ÁÁÁ

°C

Maximum Junction Temperature

ÁÁÁÁ

Jmax

150

ÁÁÁ

°C

Storage Temperature Range

ÁÁÁÁ

stg

–60 to +150

ÁÁÁ

°C

CONTROL ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS (For typical values T

= 25°C, for min/max values TA = –40°C to +85°C/ Max TJ = 125°C)

Characteristics

Symbol Pin # Min Typ Max Unit

Independent Enable Pins

Input Voltage Range V

ON/OFF(1–5)

0 – V

Control Input Impedance

100

–

Logic “0”, i.e. OFF State V

ON/OFF(1–5)

– – 0.5 V

Logic “1”, i.e. ON State 2.0 – –

Common Enable Pin

Input Voltage Range V

2 0 – V

Control Input Impedance

100

–

Logic “0”, i.e. OFF State V

2 – – 0.3 V

Logic “1”, i.e. ON State 2.0 – –

ELECTRICAL CHARACTERISTICS (For typical values T

= 25°C, for min/max values TA = –40°C to +85°C/ Max TJ = 125°C)

Characteristics

Symbol Min Typ Max Unit

CURRENT CONSUMPTION with NO LOAD

Current Consumption at Logic “0” for the complete device,

OFF

i.e. Common Enable and All Independent Enable pins at OFF State – – 5.0

Current Consumption at Logic “1” for the complete device,

ON1

i.e. Common Enable and All Independents Enable pins at ON State – 470 –

Current Consumption at Logic “1”, Common Enable at ON State

ON2

and All Independents Enable pins at OFF State – 130 –

MC33765

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REGULA T OR ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS (For typical values T

= 25°C, for min/max values TA = –40°C to +85°C/ Max TJ = 125°C)

Characteristics Symbol Pin # Min Typ Max Unit

Supply and Output Voltages, Dropout and Load Regulation

Supply Voltage V

MC33765 (2.8V) V

CC1, VCC2

15, 10 3.0 3.6 5.3 V

Regulator Output Voltage for VR1, VR2, VR3, VR4 and VR5 V

OUT(1–5)

14, 13, 12, V

MC33765 (2.8V) 11, 9 2.7 2.8 2.85

Dropout Voltage for VR1, VR2, VR3, VR5 (Note 1.) VCC–V

OUT

14, 13, – 0.11 0.17 V

12, 9

Dropout Voltage for VR4 (Note 1.) VCC–V

OUT4

11 – 0.17 0.30 V

Load Regulation (TA = 25°C) Reg

load(1–5)

9, 11, 12, – – 0.5 mV/

13, 14

Max Power Dissipation and Total DC Output Current (VR1 + VR2 + VR3 + VR4 + VR5) (Note 2.)

Max Power Dissipation at VCC = 5.3 V (TA = 85°C) P

dmax

– – 285 mW

Max. Total RMS Output Current at VCC = 5.3 V (TA = 85°C) I

RMS

– – 130 mA

Max Power Dissipation at VCC = 5.3 V (TA = 25°C) P

dmax

– – 700 mW

Max. Total RMS Output Current at VCC = 5.3 V (TA = 25°C) I

RMS

– – 250 mA

Output Currents (Note 3.)

Regulator VR1 Output Current I

OUT1

14 10 – 30 mA

Regulator VR2 Output Current I

OUT2

13 10 – 40 mA

Regulator VR3 Output Current I

OUT3

12 0 – 50 mA

Regulator VR4 Output Current I

OUT4

11 10 – 150 mA

Regulator VR5 Output Current I

OUT5

9 10 – 60 mA

Current Limit for VR1, VR2, VR3, VR4, VR5 I

MAX

14, 13, 12, – 2 X I

OUT

– mA

[Twice the max Output Current for each output] 11, 9 (1–5)

External Capacitors

External Compensation Capacitors for VR1, VR2, VR4, VR5 C

(1–2, 4–5)

14, 13, 11, 9 0.10 – 1.0

External Compensation Capacitors for VR3 C

12 1.0 – –

External Compensation Capacitors ESR 0.05 1.0 3.0

Ripple Rejections

Ripple Rejection VR1, VR2, VR4, VR5

(DV

OUT

)

14, 13, 50 60 – dB

(at Max. Current, 1.0 kHz, C = 100 nF)

(DVCC)

11, 9

Ripple Rejection VR1, VR2, VR4, VR5

(DV

OUT

)

14, 13, 40 45 – dB

(at Max. Current, f = 10 kHz, C = 100 nF)

(DVCC)

11, 9

Ripple Rejection of VR3

(DV

OUT

)

12 50 60 – dB

(at Max. Current, f = 1.0 kHz, C = 1.0 mF)

(DVCC)

Ripple Rejection of VR3

(DV

OUT

)

12 40 45 – dB

(at Max. Current, f = 10 kHz, C = 1.0 mF)

(DVCC)

Ripple Rejection of VR3

(DV

OUT

)

12 18 22 – dB

(at Max. Current, f = 100 kHz, C = 1.0 mF)

(DVCC)

1. Typical dropout voltages have been measured at currents: Output1: 25 mA, Output2: 35 mA, Output3: 40 mA, Output4: 140 mA, Output5: 40 mA Maximum value of dropout voltages are measured at maximum specified current.

2. See package power dissipation and thermal protection.

3. Maximum Output Currents are peak values. Total DC current have to be set upon maximum power dissipation specification. Only Output 3 has been designed to be stable at minimum current of 0 mA.

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REGULA T OR ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS (For typical values T

= 25°C, for min/max values TA = –40°C to +85°C/Max TJ = 125°C)

Characteristics

Symbol Min Typ Max Unit

Dynamic Parameters

Rise Time (1% 99%) Common Enable at ON state,

bypass

= 10 nF, I

out

at max. current

VR1, VR2, VR4, VR5 with C

OUT

= 100 nF, TA = 25°C t

– – 30

VR3 with C

OUT

= 1.0 mF, TA = 25°C

– – 150

Fall Time (99% 1%) [C

OUT

= 100 nF, I

OUT

= 30 mA] (Note 4.) t

off

– 100 –

Overshoot (C

OUT

= 100 nF for VR1, VR2, VR4, VR5

and C

OUT

= 1.0 mF for VR3) at TA = 25°C

– 5 8 %

Common Enable at ON state, independent enable from OFF to ON state Settling Time (to ±0.1% of nominal) at TA = 25°C

Common Enable at ON state, independent enable from OFF to ON state – 95 –

Noise and Crosstalks

Noise Voltage (100 Hz < f < 100 kHz) with C

bypass

= 100 nF

V RMS

VR1, VR2, VR4, VR5 with C

OUT

= 100 nF – 40 –

VR3 with C

OUT

= 1.0 mF

– 25 30

Static crosstalk (DC shift) between the Regulator Output, TA = 25°C (Note 5.) – 150 200

Dynamic CrossT alk Attenuation between the Regulator Outputs 30 35 – dB

(f = 10 kHz), TA = 25°C (Note 6.)

Thermal Shutdown

Thermal Shutdown – 160 – °C

4. The Fall time is highly dependent on the load conditions, i.e. load current for a specified value of C

OUT

5. Static Crosstalk is a DC shift caused by switching ON one of the outputs through independent enable to all other outputs. This parameter is highly dependent on overall PCB layout and requires the implementation of low–noise GROUND rules (e.g. Ground plane).

6. Dynamic crosstalk is the ratio between a forced output signal to signal transferred to other outputs. This requires special device configuration to be measured.

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