ADP3607AR Analog Devices Inc, ADP3607AR Datasheet

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ADP3607AR

Manufacturer Part Number
ADP3607AR
Description
Manufacturer
Analog Devices Inc
Type
Step Upr
Datasheet

Specifications of ADP3607AR

Output Voltage
3 to 9V
Output Current
50mA
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
5V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Package Type
SOIC
Pin Count
8
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADP3607AR
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
ADP3607AR-5
Manufacturer:
Analog Devices Inc.
Quantity:
2
Part Number:
ADP3607ARZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
a
GENERAL DESCRIPTION
The ADP3607 is a 50 mA regulated output switched capacitor
voltage doubler. It provides a regulated output voltage with
minimum voltage loss and requires a minimum number of ex-
ternal components. In addition, the ADP3607 does not require
the use of an inductor.
The internal oscillator of the ADP3607 runs at 500 kHz nomi-
nal frequency, which produces an output switching frequency of
250 kHz. This allows for the use of smaller charge pump and
filter capacitors.
The ADP3607 provides an accuracy of 5% with a typical shut-
down current of 150 A. It can also operate from a single posi-
tive input voltage as low as 3 V. The ADP3607 is offered with
the regulation fixed at 5 V, or adjustable via external resistors
over a 3 V to 9 V range.
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
Fully Regulated Output Voltage (5 V and Adjustable)
Input Voltage Range From 3 V to 5 V
50 mA Output Current
Output Accuracy:
High Switching Frequency: 250 kHz
SO-8 and TSSOP-8 Packages
–40 C to +85 C Ambient Temperature Range
A P P L I C A T I O N S
Computer Peripherals and Add-On Cards
Portable Instruments
Battery Powered Devices
Pagers and Radio Control Receivers
Disk Drives
Mobile Phones
5%
Voltage Boost with Regulated Output
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
V
SD
IN
3.3V
V
OFF
CLOCK
IN
50 mA Switched Capacitor
*FOR BEST PERFORMANCE, 10 F IS RECOMMENDED
C
C
OSC
GEN
Figure 1. Typical Application Circuit
P
IN
4.7 F
FUNCTIONAL BLOCK DIAGRAM
*C
: SPRAGUE, 293D475X0010B2W
, C
IN
O
: TOKIN, 1E475ZY5UC205F
+
S1
ON
0
4.7 F
*C
World Wide Web Site: http://www.analog.com
SD
P
C
+
P
+
1.5 V
V
REF
V
ADP3607-5
C
C
IN
P
P
S2
SD103
+
GND
D1
V
OUT
C
P
© Analog Devices, Inc., 1999
GND
S4
FB
ADP3607
V
SENSE
+
S3
*C
4.7 F
O
V
5.0V
OUT
V
V
OUT
SENSE

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ADP3607AR Summary of contents

Page 1

FEATURES Fully Regulated Output Voltage (5 V and Adjustable) Input Voltage Range From Output Current Output Accuracy: 5% High Switching Frequency: 250 kHz SO-8 and TSSOP-8 Packages – +85 C ...

Page 2

... ESR. Capacitors with higher ESR may reduce output voltage and efficiency. Model ADP3607AR-5 ADP3607AR ADP3607ARU-5 ADP3607ARU *SO = Small Outline Package Thin Small Outline Package. Contact the factory for the availability of other output voltage options. –2– 4.7 F unless otherwise noted Min Typ ...

Page 3

Table I. Other Members of ADP360x Family Output Package 2 Model Current Option ADP3603AR 50 mA SO-8 ADP3604AR 120 mA SO-8 ADP3605AR-3 120 mA SO-8 ADP3605AR 120 mA SO-8 NOTES 1 See individual data sheets for detailed ordering information. 2 ...

Page 4

ADP3607 –Typical Performance Characteristics 270 265 260 255 250 4.0 3.0 3.5 SUPPLY VOLTAGE – Volts Figure 2. Oscillator Frequency vs. Supply Voltage 5.05 5. 25mA 5. 50mA L 4.97 4.95 –40 –15 10 ...

Page 5

FIXED VERSION 3.5 ADJUSTABLE VERSION R = 38k 3.4 3.3 4.0 3.0 3.5 SUPPLY VOLTAGE – Volts Figure 8. Supply Current vs. Supply Voltage in Normal Mode 240 V = +5.0V IN 220 200 V = +4.0V IN ...

Page 6

ADP3607 THEORY OF OPERATION The ADP3607 uses a switched capacitor principle to generate a regulated boost voltage from a positive input voltage. An on-board oscillator generates a two-phase clock to control a switching network that transfers charge between the storage ...

Page 7

C , during one-half of the charge-pump O cycle, peak-to-peak output ripple voltage is calculated by using the following formula RIPPLE PUMP O where I = Load Current L F ...

Page 8

ADP3607 Regulated Adjustable Output Voltage For the adjustable version of the ADP3607, the regulated out- put voltage is programmed by a resistor that is inserted between the V and V pins, as illustrated in Figure 19. The in- SENSE OUT ...

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