Versatile 6 Regulator Power Management Circuit For Cellular Subscriber Terminal

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MC33283 pinout
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Pages : 21 Pages

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MC33283FTB28R2  
ON Semiconductor

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MC33283 pinout,MC33283 pin diagram
MC33283
Versatile 6 Regulator Power
Management Circuit for
Cellular Subscriber
Terminal
The MC33283 is a complete Power Management solution for portable
devices such as telephone handsets, two−way radios, etc. Thanks to its
large scale integration, the device offers up to seven Low DropOut
Regulators (LDO), two of them delivering a voltage higher than the
battery’s.
Despite the presence of an internal Charge Pump the overall noise
specification makes the circuit an ideal candidate where noise is an
important feature. Outputs deliver 40mVRMS typical (10−100kHz) at
nominal output current.
With a 50dB ripple rejection under 10kHz, the circuit naturally shields
the downstream electronics against DC choppy lines. This parameter
guarantees a clean operation for Battery operated devices.
Finally, housed in a compact Thin Quad Flat Pack TQFP−32 package,
the MC33283 gathers all the features necessary to power future portable
radios.
Features:
http://onsemi.com
CIRCUIT FOR
PORTABLE DEVICES
SILICON MONOLITHIC
INTEGRATED CIRCUIT
32
1
6 regulated outputs:
2.85V, four outputs: 10−135mA
4.75V @ 15mA
5.0V @ 20MA
Low−noise: 40μVRMS at nominal output levels (10Hz−100kHz)
Ultra−low reverse current in OFF mode (200nA typical)
Two−mode regulator: output 5 Switches from 3 to 5V with SEL pin
activated
Thermal shutdown for a rugged and reliable operation
All outputs are short−circuit proof
FTB SUFFIX
PLASTIC PACKAGE
CASE 873B−02
(TQFP−32)
PIN CONNECTIONS
ENRS
CBYP
OUT1
VCC2
GND
GND
24 GND
23 POR
22 UVLO2
21 EN3
20 EN5
19 EN6
18 SEL
17 GND
9 10 11 12 13 14 15 16
OUT6
VS1IN
B1
GND
GND
Package
TQFP32
BUB
VIN
D1
EN7
EN2
32 31 30 29 28 27 26 25
GND 1
OUT7 2
OUT2 3
OUT3 4
OUT5 6
GND_CP 7
GND 8
Applications:
MC33283
All Portable radios (GSM etc.)
Bursting systems (TDMA etc.)
Battery operated devices
(Top View)
ORDERING INFORMATION
Device
MC33283FTB28,R2
Temperature
Range
−20°C
to +70°C
©
Semiconductor Components Industries, LLC, 2006
July, 2006
Rev. 2
1
Publication Order Number:
MC33283 D