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B4600CN-60 PDF даташит

Спецификация B4600CN-60 изготовлена ​​​​«ETC» и имеет функцию, называемую «600 mA Low Dropout Voltage Regulators».

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Номер произв B4600CN-60
Описание 600 mA Low Dropout Voltage Regulators
Производители ETC
логотип ETC логотип 

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B4600CN-60 Даташит, Описание, Даташиты
Bay Linear
Inspire the Linear Power
600 mA Low Dropout Voltage Regulators
B4600
Description
Features
The B4600 series are a group of positive output voltage,
three-pin regulators, that provide a high current even
when the input/output voltage differential is small. Very
low power consumption, only 2µA typ., and high
accuracy is achieved though CMOS construction and
programmable fuse technologies. Output voltage: 2.0V
to 6.0V in 0.1V increments.
The B4600 consists of a high-precision voltage
reference, an error correction circuit, and a current
limited output driver.
Available in SOT223 (500mW) and SOT-89 (300mW)
packages minimizing the usage of board real state.
Maximum Output Current: 600 mA.
Highly accurate: Output voltage +/- 2.5%.
Only 2µA power Consumption.
Very Low Dropout:
0.11V @ 100mA
0.3V @ 300mA
0.5V @ 450mA
Offered in SOT-89 & SOT-223 Packages
Applications
Battery Powered Equipment
Notebook PC, Palmtops, PDA
Portable Cameras and Video Recorders
Reference Voltage Sources
Pin Connection
SOT-223 (N)
Vin
2
1 23
Vss Vin Vout
Top View
SOT-89 (R)
Vin
2
1 23
Vss Vin Vout
Top View
Ordering Information
Package
Part No.
SOT-223
B4600CN-X.X
SOT-89
B4600CR-X.X
X.X = Fixed Output Voltages from 2.0V to 6.0V
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com









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B4600CN-60 Даташит, Описание, Даташиты
B4600
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
Continual Total
Power Dissipation
Operating Ambient Temperature
Storage Temperature
SOT-223
SOT-89
Symbol
VIN
IOUT
VOUT
Pd
TOPR
TSTG
Ratings
6.5
800
VSS -0.3 to VIN 0.3
500
300
-30 to 80
-40 to 125
Units
V
mA
V
mW
°C
°C
Electrical Characteristics (Ta = 25°C, VIN = 5V; unless otherwise noted)
Parameter
Conditions
MIN
Output Voltage
Line Regulation
VOUT/VIN-VOUT
Load Regulation
Maximum Output Current
IO = 0mA
IO = 0 to 600mA
IO= 100mA,
(VOUT + 0.1V)<VIN<6V
VIN= 6V, 0mA < IO < 500mA
COUT =1 µF
-1.4%
-2.5%
500
Current Limit
900
Ground Pin Current
Dropout Voltage
IOUT = 100mA
IO = 100mA
IO = 300 mA
Thermal Shutdown Temperature
IO = 500 mA
TYP
-
-
0.2
2
110
300
550
155
MAX
+1.4%
+2.5%
0.3
UNIT
V
%/V
0.04 %/mV
mA
6 µA
160
450 mV
°C
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com









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B4600CN-60 Даташит, Описание, Даташиты
B4600
PRODUCT DESCRIPTION
The B4600 is precision fixed output voltage regulator.
Unlike bipolar regulators, the B4600 supply current
does not increase with load current. In addition, Vout
remains stable and within regulator at very low load
currents (an important consideration in RTC and
CMOS RAM battery back-up application).
Figure 1 shows a typical application circuit. The
regulator is enabled any time the shutdown input is at
or above VIH. And shutdown (disabled) when SHDN is
at or below VIL. SHDN maybe controlled by a CMOS
logic gate, or I/O port of a micro controller. If the
SHDN input is not. Required, it should be connected
directly to the supply. While in shutdown, supply
current decreases to 0.05µA (typical) and Vout falls to
zero volts.
Output Capacitor
A 1µF (min) capacitor from Vout to ground is required.
Then output capacitor should have an effective series
resistance of 5or less. A 1µA capacitor should be
connected from Vin to GND if there is more than 10
inches of wire between the regulator and the AC filter
capacitor, or if a battery is used as the power source.
Aluminum electrolytic or tantalum capacitor types can
be used. (since many aluminum electrolytic capacitors
freeze at approximately- 30°C, solid tantalums are
recommended for applications operating below –25
°C.) When operating from sources other than
batteries, supply-noise rejection and transient response
can be improved by increasing the value of the input
and output capacitors and employing passive filtering
techniques.
Thermal Considerations
Thermal Shutdown
Integrated thermal protection circuitry shuts the
regulator off when die temperature exceeds 160°C.
The regulator remaining off until the die temperature
drops to approximately 140 °C.
Power Dissipation
The amount of power the regulator dissipates is
primarily a function of input and output voltage, and
output current. The following equation is used to
calculate worst case power dissipation:
Where:
PD=(VINMAX-VOUTMIN)ILOADMAX
PD= worst case actual power dissipation
VINMAX= Maximum voltage on VIN
VOUTMIN=Minimum regulator output voltage
ILOADMAX= maximum output (LOAD) Current
The maximum allowable power dissipation is function
of the maximum ambient temperature (TAMAX). The
maximum allowable die temperature (125°C) and the
thermal resistance from junction-to-air (θJA).
PDMAX=(TJMAX-TAMAX)/ θJA
Where all terms are previously defined
This can be caused in conjunction with other equation
to ensure regulator thermal operation is within limit.
For example:
Given:
VINMAX=3.3V+10%
VOUTMIN=2.7V-2.5%
ILOADMAX=275 mA
TJMAX=125°C
TAMAX=95°C
θJA= 59°C/W
Find:
1. Actual power dissipation
2. Maximum allowable dissipation
C1
1µF
BATTREY
VIN VOUT
B4500
GND
C2
1µF
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com










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