ADP3367 Analog Devices, ADP3367 Datasheet

no-image

ADP3367

Manufacturer Part Number
ADP3367
Description
+5 V Fixed, Adjustable Low-Dropout Linear Voltage Regulator
Manufacturer
Analog Devices
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADP3367AR
Manufacturer:
AD
Quantity:
57
Part Number:
ADP3367AR
Manufacturer:
st
Quantity:
24
Part Number:
ADP3367AR
Manufacturer:
AD
Quantity:
20 000
Part Number:
ADP3367ARZ
Manufacturer:
AD
Quantity:
6 247
Part Number:
ADP3367ARZ
Manufacturer:
ADI
Quantity:
1 238
Part Number:
ADP3367ARZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
a
GENERAL DESCRIPTION
The ADP3367 is a low-dropout precision voltage regulator that
can supply up to 300 mA output current. It can be used to give
a fixed +5 V output with no additional external components or
can be adjusted from +1.3 V to +16 V using two external
resistors. Fixed or adjustable operation can be selected via the
SET input. The low quiescent current (17 A) in conjunction
with the standby or shutdown mode (0.2 A) makes this device
especially suitable for battery powered systems. The dropout
voltage when supplying 100 A is only 15 mV allowing opera-
tion with minimal headroom thereby prolonging the useful bat-
tery life. At higher output current levels the dropout remains
low increasing to just 150 mV when supplying 200 mA. A wide
input voltage range from 2.5 V to 16.5 V is allowable. Addi-
tional features include a dropout detector and a low supply/bat-
tery monitoring comparator. The dropout detector can be used
to signal loss of regulation while the low battery detector can be
used to monitor the input supply voltage.
The ADP3367 is a much improved pin-compatible replacement
for the MAX667. Improvements include lower supply current,
tighter voltage accuracy and superior line and load regulation.
Improved ESD protection (>6000 V) is achieved by advanced
voltage clamping structures. The ADP3367 is specified over the
industrial temperature range –40 C to +85 C and is available in
narrow surface mount (SOIC) packages.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Low Dropout: 150 mV @ 200 mA
Low Dropout:
Low Power CMOS: 17 A Quiescent Current
Shutdown Mode: 0.2 A Quiescent Current
300 mA Output Current Guaranteed
Pin Compatible with MAX667
Stable with 10 F Load Capacitor
+2.5 V to +16.5 V Operating Range
Low Battery Detector
Fixed +5 V or Adjustable Output
High Accuracy:
Dropout Detector Output
Low Thermal Resistance Package*
ESD > 6000 V
APPLICATIONS
Handheld Instruments
Cellular Telephones
Battery Operated Devices
Portable Equipment
Solar Powered Instruments
High Efficiency Linear Power Supplies
300 mV @ 300 mA
2%
Low-Dropout Linear Voltage Regulator
ADI’s proprietary Thermal Coastline leadframe used in ADP3367AR
packaging, has 30% lower thermal resistance than the standard
leadframes. This improvement in heat flow rate results in lower
die temperature hence improves reliability.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Load Current vs. Input-Output Differential Voltage
SHDN
GND
LBO
LBI
IN
400
300
200
100
0
INPUT
0
+6V
TYPICAL OPERATING CIRCUIT
FUNCTIONAL BLOCK DIAGRAM
T
A
DISSIPATION LIMIT
+
= +50 C
SO PACKAGE
+5 V Fixed, Adjustable
IN
STANDARD
SET
C2
ADP3367
GUARANTEED 300mA
GND
5
A1
ADP3367
DISSIPATION LIMIT
V
SHDN
ADP3367
IN
OUT
–V
OUT
1.255V
REF
– V
© Analog Devices, Inc., 1995
ADP3367
+
C1
10µF
10
C1
50mV
+5V
OUTPUT
Fax: 617/326-8703
15
DD
SET
OUT

Related parts for ADP3367

ADP3367 Summary of contents

Page 1

... Solar Powered Instruments High Efficiency Linear Power Supplies GENERAL DESCRIPTION The ADP3367 is a low-dropout precision voltage regulator that can supply up to 300 mA output current. It can be used to give a fixed +5 V output with no additional external components or can be adjusted from +1 +16 V using two external resistors ...

Page 2

... OUT tion is not implied. Exposure to absolute maximum rating conditions for extended + 0 periods of time may affect reliability Model ADP3367AR *SO = Small Outline Package. –2– unless otherwise noted) A MIN ...

Page 3

... REV. 0 GENERAL INFORMATION The ADP3367 contains a micropower bandgap reference volt- age source, an error amplifier A1, two comparators (C1, C2) and a series PNP output pass transistor. CIRCUIT DESCRIPTION The internal bandgap voltage reference is trimmed to 1.255 V and is used as a reference input to the error amplifier A1 ...

Page 4

... ADP3367–Typical Performance Characteristics 500 250 10 100 1 LOAD CURRENT – mA Figure 2. Dropout Voltage vs. Load Current + 0.1 0.01 0.01 0 – mA OUT Figure 3. Ground Current vs. Load Current 1000 100mA 100 50mA 20mA 10mA 10 5mA 2mA 1 0.00 0.05 0.10 0.15 0.20 0.25 I-O DIFFERENCE – mV Figure 4. DD Output Current vs. I-O Differential 2 ...

Page 5

... C1 10µF Figure 10. Low Battery/Supply Detect Circuit Dropout Detector The ADP3367 features an extremely low dropout voltage mak- ing it suitable for low voltage systems where headroom is limited. A dropout detector is also provided. The dropout detector output, DD, changes as the dropout voltage approaches its limit. This is useful for warning that regulation can no longer be maintained ...

Page 6

... V IN 1mA 500µA POWER DISSIPATION The ADP3367 can supply currents up to 300 mA and can oper- +5V ate with input voltages as high as 16.5 V, but not simultaneously. OUTPUT important that the power dissipation and hence the internal 10µF die temperature be maintained below the maximum limits. Power Dissipation is the product of the voltage differential across the regulator times the current being supplied to the load ...

Page 7

... Figure 7 shows how quickly the regulator recovers from an out- put load change from 100 mA. The offset due to the load current change is less than 1 mV. Monitored P Power Supply Figure 15 shows the ADP3367 being used in a monitored P supply application. The ADP3367 supplies +5 V for the micro- –7– ADP3367 40 0 ...

Page 8

... An interrupt is gener- ated so that a power-down sequence can be completed before power is completely lost. The low dropout voltage on the ADP3367 maximizes the available time to carry out the power- down sequence. The resistor divider network R1 and R2 should be selected so that the voltage on PFI is 1. the desired warning voltage ...

Related keywords