SPX1581(2004) View Datasheet(PDF) - Signal Processing Technologies
Part Name
Description
Manufacturer
SPX1581
(Rev.:2004)
(Rev.:2004)
Signal Processing Technologies
SPX1581 Datasheet PDF : 7 Pages
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Power Dissipation ..................................... Internally Limited
Lead Temp. (Soldering, 10 Seconds) ......................... 300°C
Storage Temperature Range ..................... -65°C to +150°C
Operating Junction Temperature Range
SPX1581 Control Section ............................. 0°C to +125°C
SPX1581 Power Transistor .......................... 0°C to +150°C
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ..................................................... 6V
VCTRL Input Voltage ....................................................... 13V
ELECTRICAL CHARACTERISTICS
Electrical characteristics at VOUT = VSENSE, VADJ = 0V, TA=25°C, CCTL = CPWR = COUT = 33µF tantalum cap otherwise specified.
The ♦ denotes the specifications which apply over full temperature range -40°C to +85°C, unless otherwise specified.
PARAMETER
2.5V Version
Output Voltage
2.8V Version
Output Voltage
3.3V Version
Output Voltage
All Voltage Options
Reference Voltage
Line Regulation
Load Regulation (Note 1)
MIN TYP MAX UNITS ♦ CONDITIONS
2.450 2.5 2.550 V
VCTRL = 6.0V to 12V, VIN = 3.0V to 5.0V, IO =10mA
2.400
2.600
♦ IO = 10mA to 5A
2.744 2.8 2.856 V
VCTRL = 6.3V to 12V, VIN =3.3V to 12V, IO=10mA
2.688
2.912
♦ IO = 10mA to 5A
3.234 3.3 3.366 V
VCTRL = 6.3V to 12V, VIN = 3.3V + 0.8V, IO=10mA
3.168 3.3 3.432
♦ IO = 10mA to 5A
1.238 1.25 1.263 V
VCTRL = 2.75V, VIN = 2.00V, IO = 10mA
VCTRL=2.7V to 12V,VIN = 2.05V to 5.5V,IO=10mA to 5A
mV
VCTRL = 2.5V to 12V, VIN = 1.75V to 5.5V, IO=10mA
1.0 3.0
♦ VADJ=0V
1.0 5.0 mV ♦ VCTRL = 2.75V, VIN = 2.1V, IO=10mA to 5A, VADJ = 0V
Dropout Voltage Min. VCTRL
(Note 2) (VCTRL - VOUT)
Dropout Voltage Min. VIN
(Note 2) (VIN - VOUT)
Current Limit
Minimum Load Current
1.10 1.25
0.40 0.50
5.1
5 10
V
VADJ = 0V
VIN = 2.05V, IO = 1A
V
VADJ = 0V
VIN = 2.75V, IO = 5A
A
VCTRL = 2.75V, VIN = 2.05V, ∆ VOUT = 100mV, VADJ = 0V
mA ♦ VCTRL = 5V, VIN=3.3V, VADJ=0V
Thermal Regulation
Ripple Rejection
Control Pin Current
Adjustble Pin Current
Thermal Resistance
TO-220-5
Thermal Resistance
TO-263-5
0.002 0.02 %/W
30ms Pulse
60 80
dB
VCTRL = 3.75V, VIN = 3.75V, IO = 2.5A, VADJ=0V
TJ=25, VRIPPLE=1Vpp at 120Hz
60 120 mA ♦ VADJ = 0V
VCTRL = 2.75V, VIN = 2.05V, IO = 5A
50
µA
VCTRL = 2.75V, VIN = 2.05V, VADJ=0V, IO = 10mA
120
♦
3 °C/W
Junction to Case (θJC)
50 °C/W
Junction to Ambient (θJA)
3 °C/W
Junction to Case (θJC)
60 °C/W
Junction to Ambient (θJA)
Note 1: Low duty cycle pulse testing with Kelvin connections is required to order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum differential between VIN and VOUT or VCTRL and VOUT required to
maintain regulation at VOUT 95% Nominal VOUT.
Note 3: VREF is measured across Adjust pin to Sense pin.
Date 5/25/04
SPX1581 5A Ultra Low Dropout Voltage Regulator
2
©Copyright 2004 Sipex Corporation
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