MC33765
Very Low Dropout/Ultra Low
Noise 5 Outputs Voltage
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.
http://onsemi.com
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
MARKING
DIAGRAM
16
MC33
765
TSSOP−16
DTB SUFFIX
CASE 948F
ALYW G
G
1
1
A
L
Y
W
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
voltage pin V 1. The other voltage regulators VR4 and VR5 have a
CC
common input voltage pin V 2.
CC
(Note: Microdot may be in either location)
Features
• Five Independent Outputs at 2.8V Typical, Based Upon Voltage Version
• Internal Trimmed Voltage Reference
PIN CONNECTIONS
Not Connected
1
2
3
4
5
6
7
8
16
15
14
Bypass
Common Enable
On/Off V−Reg. 1
On/Off V−Reg. 2
On/Off V−Reg. 3
On/Off V−Reg. 4
On/Off V−Reg. 5
GND
• V Tolerance 3.0% over the Temperature Range −40°C to +85°C
out
V
1
CC
• Enable Input Pin (Logic−Controlled Shutdown) for Each of the Five
Output V−Reg. 1
Outputs
13 Output V−Reg. 2
12
• Common Enable Pin to Shutdown the Whole Circuit
Output V−Reg. 3
11 Output V−Reg. 4
• 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 mA in OFF Mode,
130 mA Typical in ON Mode)
10
9
V
2
CC
Output V−Reg. 5
• Ultra Low Noise for VR3 (30 mV RMS Max, 100 Hz < f < 100 kHz)
• Internal Current and Thermal Limit
(Top View)
• 100 nF for VR1, VR2, VR4 and VR5 and 1.0 mF for VR3 for Stability
• Supply Voltage Rejection: 60 dB (Typical) @ f = 1.0 kHz
• These are Pb−Free Devices*
ORDERING INFORMATION
†
Device
Package*
TSSOP−16
TSSOP−16
Shipping
MAXIMUM RATINGS
MC33765DTB
96 Units/Rail
96 Units/Rail
Rating
Power Supply Voltage
Symbol
Value
5.3
Unit
V
MC33765DTBG
V
R
CC
MC33765DTBR2 TSSOP−16 2500 Tape & Reel
Thermal Resistance Junction−to−Air
Operating Ambient Temperature
Maximum Operating Junction Temperature
Maximum Junction Temperature
Storage Temperature Range
140
°C/W
°C
q
JA
MC33765DTBR2G TSSOP−16 2500 Tape & Reel
*This package is inherently Pb−Free.
T
A
−40 to +85
125
T
°C
J
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
T
150
°C
Jmax
T
stg
−60 to +150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
June, 2006 − Rev. 4
MC33765/D