900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1853 Datasheet

SC70 Inverting Charge Pumps with Shutdown

No Preview Available !

19-1792; Rev 0; 9/00
SC70 Inverting Charge Pumps
with Shutdown
General Description
The MAX1852/MAX1853 monolithic, CMOS charge-
pump voltage inverters in the ultra-small SC70 package
feature a low 15output resistance, permitting loads
up to 30mA with maximum efficiency. The MAX1852/
MAX1853 are available with operating frequencies of
50kHz and 200kHz, respectively, allowing optimization
of supply current or external component size. Small
external components and micropower shutdown mode
make these devices ideal for both battery-powered and
board-level voltage conversion applications.
Oscillator control circuitry and four power-MOSFET
switches are included on-chip. Applications include
generating a negative supply from a +5V or +3.3V logic
supply to power analog circuitry. Both versions come in
a 6-pin SC70 package that is 40% smaller than a
SOT23.
Features
o 30mA Output Current
o Low 15Output Resistance
o 68µA Supply Current (MAX1852)
o Requires Only Two 0.68µF Capacitors (MAX1853)
o +2.5V to +5.5V Input Voltage Range
o 0.1µA Logic-Controlled Shutdown
o Two Switching Frequencies
50kHz (MAX1852)
200kHz (MAX1853)
o Slew-Rate Limited to Reduce EMI
o Ultra-Small 6-Pin SC70 Package
Applications
Negative Supply from +5V or +3.3V Logic Supplies
Small LCD Panels
GaAsFET Bias Supplies
Handy-Terminals, PDAs
Battery-Operated Equipment
PART
MAX1852EXT
MAX1853EXT
Ordering Information
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
6 SC70
6 SC70
TOP
MARK
AAL
AAM
Typical Operating Circuit
0.68µF
INPUT
2.5V TO 5.5V
C1+
IN
C1-
OUT
MAX1853
ON SHDN
OFF
GND
NEGATIVE
OUTPUT
-1 VIN
30mA
0.68µF
Pin Configuration
TOP VIEW
OUT 1
6 C1+
MAX1852
GND 2 MAX1853 5 C1-
SHDN 3
4 IN
SC70-6
________________________________________________________________ Maxim Integrated Products 1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1853 Datasheet

SC70 Inverting Charge Pumps with Shutdown

No Preview Available !

SC70 Inverting Charge Pumps
with Shutdown
ABSOLUTE MAXIMUM RATINGS
IN to GND .................................................................-0.3V to +6V
C1+, SHDN to GND .....................................-0.3V to (VIN + 0.3V)
C1- to GND...............................................(VOUT - 0.3V) to +0.3V
OUT to GND .............................................................+0.3V to -6V
OUT Short-Circuit to GND ..............................................1 minute
Continuous Power Dissipation (TA = +70°C)
6-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, capacitors from Table 2, VIN = +5V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values are
at TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage Range
Quiescent Supply Current
Shutdown Supply Current
Oscillator Frequency
Voltage Conversion Efficiency
Output Resistance (Note 2)
Output Current
SHDN Input Logic High
SHDN Input Logic Low
SHDN Bias Current
Wake-Up Time From Shutdown
MAX1852
TA = +25°C
TA = -40°C to +85°C
MAX1853
TA = +25°C
TA = -40°C to +85°C
SHDN = GND
TA = +25°C
TA = +85°C
MAX1852
TA = +25°C
TA = -40°C to +85°C
MAX1853
TA = +25°C
TA = -40°C to +85°C
IOUT = 0
IOUT = 10mA
TA = +25°C
TA = -40°C to +85°C
Continuous, long-term
+2.5V VIN +5.5V
+2.5V VIN +5.5V
SHDN = GND or IN TA = +25°C
TA = +85°C
IOUT = 5mA
MAX1852
MAX1853
2.5 5.5 V
75 130
150
165 320
µA
350
0.002
0.01
0.5
µA
32 50 68
25 78
kHz
130 200 270
110 310
99 99.9
%
15 30
40
0.7 × VIN
30 mARMS
V
0.3 × VIN
V
-100
1
100
nA
10
260
µs
112
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Output resistance is guaranteed with capacitor ESR of 0.3or less.
2 _______________________________________________________________________________________


Part Number MAX1853
Description SC70 Inverting Charge Pumps with Shutdown
Maker Maxim
Total Page 8 Pages
PDF Download

MAX1853 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 MAX185 (MAX183 - MAX185) High-Speed 12-Bit A/D Converters
Maxim Integrated Products
2 MAX1852 SC70 Inverting Charge Pumps with Shutdown
Maxim
3 MAX1853 SC70 Inverting Charge Pumps with Shutdown
Maxim
4 MAX1854 High-Speed / Adjustable / Synchronous Step-Down Controllers with Integrated Voltage Positioning
Maxim
5 MAX1855 High-Speed / Adjustable / Synchronous Step-Down Controllers with Integrated Voltage Positioning
Maxim
6 MAX1856 Wide Input Range / Synchronizable / PWM SLIC Power Supply
Maxim
7 MAX1857 500mA / Low-Dropout / Ripple-Rejecting LDO in MAX
Maxim
8 MAX1858A Dual 180 Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR
Maxim





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy