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ICL7660CUA Datasheet

  • ICL7660CUA

  • Switched-Capacitor Voltage Converters

  • 118.52KB

  • 12頁(yè)

  • MAXIM   MAXIM

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19-4667; Rev 1; 7/94
Switched-Capacitor Voltage Converters
_______________General Description
The MAX1044 and ICL7660 are monolithic, CMOS
switched-capacitor voltage converters that invert, dou-
ble, divide, or multiply a positive input voltage. They are
pin compatible with the industry-standard ICL7660 and
LTC1044. Operation is guaranteed from 1.5V to 10V with
no external diode over the full temperature range. They
deliver 10mA with a 0.5V output drop. The MAX1044
has a BOOST pin that raises the oscillator frequency
above the audio band and reduces external capacitor
size requirements.
The MAX1044/ICL7660 combine low quiescent current
and high efficiency. Oscillator control circuitry and four
power MOSFET switches are included on-chip.
Applications include generating a -5V supply from a
+5V logic supply to power analog circuitry. For applica-
tions requiring more power, the MAX660 delivers up to
100mA with a voltage drop of less than 0.65V.
____________________________Features
o
Miniature 碌MAX Package
o
1.5V to 10.0V Operating Supply Voltage Range
o
98% Typical Power-Conversion Efficiency
o
Invert, Double, Divide, or Multiply Input Voltages
o
BOOST Pin Increases Switching Frequencies
(MAX1044)
o
No-Load Supply Current: 200碌A(chǔ) Max at 5V
o
No External Diode Required for Higher-Voltage
Operation
MAX1044/ICL7660
______________Ordering Information
PART
MAX1044CPA
MAX1044CSA
MAX1044C/D
MAX1044EPA
TEMP. RANGE
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
________________________Applications
-5V Supply from +5V Logic Supply
Personal Communications Equipment
Portable Telephones
Op-Amp Power Supplies
EIA/TIA-232E and EIA/TIA-562 Power Supplies
Data-Acquisition Systems
Hand-Held Instruments
Panel Meters
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
_________________Pin Configurations
TOP VIEW
(N.C.) BOOST
CAP+
GND
CAP-
1
2
3
4
8
V+
OSC
LV
V
OUT
MAX1044
ICL7660
7
6
5
__________Typical Operating Circuit
DIP/SO/碌MAX
CAP+
V+
INPUT
SUPPLY
VOLTAGE
N.C.
1
V+ AND CASE
8
7
OSC
MAX1044
ICL7660
CAP+
CAP-
V
OUT
GND
NEGATIVE
OUTPUT
VOLTAGE
2
ICL7660
6
LV
GND
3
4
5
V
OUT
NEGATIVE VOLTAGE CONVERTER
CAP-
( ) ARE FOR ICL7660
TO-99
1
________________________________________________________________
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.

ICL7660CUA 產(chǎn)品屬性

  • Maxim Integrated Products

  • Inverting, Step Up

  • - 1.5 V to - 10 V, 3 V to 20 V

  • 20 mA

  • + 70 C

  • uSOP-8

  • 0 C

  • SMD/SMT

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