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PDF MC33283 Data sheet ( Hoja de datos )
| Número de pieza | MC33283 | |
| Descripción | Versatile 6 Regulator Power Management Circuit | |
| Fabricantes | ON Semiconductor | |
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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:
• 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
Applications:
• All Portable radios (GSM etc.)
• Bursting systems (TDMA etc.)
• Battery operated devices
http://onsemi.com
POWER MANAGEMENT
CIRCUIT FOR
PORTABLE DEVICES
SILICON MONOLITHIC
INTEGRATED CIRCUIT
32 1
FTB SUFFIX
PLASTIC PACKAGE
CASE 873B−02
(TQFP−32)
PIN CONNECTIONS
32 31 30 29 28 27 26 25
GND 1
OUT7 2
OUT2 3
OUT3 4
VCC1 5
OUT5 6
GND_CP 7
GND 8
24 GND
MC33283
23 POR
22 UVLO2
21 EN3
20 EN5
19 EN6
18 SEL
17 GND
9 10 11 12 13 14 15 16
(Top View)
ORDERING INFORMATION
Device
Temperature
Range
Package
MC33283FTB28,R2 −20°C to +70°C TQFP32
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 2
1
Publication Order Number:
MC33283/D
1 page  
MC33283
REGULATOR R1
ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA = −40°C to +85°C/ Max TJ = 125°C unless
otherwise noted)
Characteristics
Test Conditions
Min Typ Max Unit
Notes
Output Voltage
3.13V < Vcc1 < 6.5V
2.70 2.85 3.00
V Limits apply over all
normal operating
conditions, except
load transient
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLine Regulation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLoad Regulation
1Vpp @ Iout = 11mA
0mA < Iout < 50mA
1.0 10 mV
12 25 mV
response
PSRR
1V pk−pk, Iout = 11mA
0kHz < f < 3kHz
3kHz < f < 8kHz
8kHz < f < 10kHz
50 60
40 50
35 45
dB EN2−EN7 disabled,
Vcc2 connected
Quiescent current
(ground current)
ON, Iout = 50mA
ON, Iout = 50μA
2.0 3.0 mA
270 330
μA
Short circuit current
75 100
mA
Reverse output current
Vbackup = 2.85V
0.2 5.0 μA
R1 disabled
Integrated RMS Noise
10Hz − 100kHz, Iout = 11mA
40 μV
Settling time
3.0V > Vout > 2.7V, Iout = 50mA
0.1 ms Vcc (1&2) 0 to 3.13V
(battery connected)
The regulator must function normally under the following conditions:
Load current
Output capacitor
Capacitor ESR
0 50 mA
0.8 1.0
μF
0.01 0.1
1.0
W
Ceramic
http://onsemi.com
5
5 Page 
MC33283
REGULATOR R7
ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA = −40°C to +85°C/ Max TJ = 125°C unless
otherwise noted)
Characteristics
Test Conditions
Min Typ Max Unit
Notes
Output Voltage
3.13V < Vcc1 < 6.5V
2.70 2.85 3.00
V Limits apply over all
normal operating
conditions, except
load transient
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLine Regulation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLoad Regulation
1Vpp @ Iout = 50mA
0mA < Iout < 50mA
0.3 10 mV
12 25 mV
response
PSRR
1V pk−pk, Iout = 37mA
0kHz < f < 3kHz
3kHz < f < 8kHz
8kHz < f < 10kHz
50 60
40 50
35 45
dB
Quiescent current
(ground current)
ON, Iout = 50mA
ON, Iout = 100μA
2.0 3.0 mA
70 120 μA
Short circuit current
75 100
mA
Integrated RMS Noise
10Hz − 100kHz, Iout = 50mA
25 μV
Settling time
3.0V > Vout > 2.7V, Iout = 50mA
0.1 ms Von/off 0 to 2.4V
(regulator enabled)
The regulator must function normally under the following conditions:
Load current
Output capacitor
Capacitor ESR
0 50 mA
0.8 1.0
μF
0.01 0.1
1.0
W
Ceramic
CHARGE PUMP
Characteristics
Test Conditions
The charge pump must function normally under the following conditions:
Frequency
Noise injected by the charge
pump on the battery line
0 < f < 220kHz
350 < f < 410kHz
Quiescent Current
On, Iout = 25mA
On, Iout = 200μA
Output Current
Source Impedance
Input Capacitor
Output Capacitor
Switching Capacitor
and
NOTES: 1. The structure of the charge pump is a doubler.
Min Typ Max Unit
Notes
270 300 330 kHz
20 μVrms
Zin = 300 mW
1.5 2.5 mA
1.2 2.0
25 mA
300 mW Battery Zin
1.0 4.7 μF Ceramic
1.0 4.7 μF Ceramic
4.7 μF Ceramic; preferred
value ≤ 1μF
http://onsemi.com
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet MC33283.PDF ] | |
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