OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX619CPA

P1-P3P4-P6P7-P7
_______________General Description
The MAX619 step-up charge-pump DC-DC converter
delivers a regulated 5V ±4% output at 50mA over tem-
perature. The input voltage range is 2V to 3.6V (two
battery cells).
The complete MAX619 circuit fits into less than 0.1in
2
of
board space because it requires only four external
capacitors: two 0.22µF flying capacitors, and 10µF
capacitors at the input and output.
Low operating supply current (150µA max) and low
shutdown supply current (1µA max) make this device
ideal for small, portable, and battery-powered applica-
tions. When shut down, the load is disconnected from
the input.
The MAX619 is available in 8-pin DIP and SO packages.
________________________Applications
Two Battery Cells to 5V Conversion
Local 3V-to-5V Conversion
Portable Instruments & Handy-Terminals
Battery-Powered Microprocessor-Based Systems
5V Flash Memory Programmer
Minimum Component DC-DC Converters
Remote Data-Acquisition Systems
Compact 5V Op-Amp Supply
Regulated 5V Supply from Lithium Backup Battery
Switching Drive Voltage for MOSFETs in
Low-Voltage Systems
____________________________Features
♦ Regulated 5V ±4% Charge Pump
♦ Output Current Guaranteed over Temperature
20mA (V
IN
≥ 2V)
50mA (V
IN
≥ 3V)
♦ 2V to 3.6V Input Range
♦ No Inductors; Very Low EMI Noise
♦ Ultra-Small Application Circuit (0.1in
2
)
♦ Uses Small, Inexpensive Capacitors
♦ 500kHz Internal Oscillator
♦ Logic-Controlled 1µA Max Shutdown
Supply Current
♦ Shutdown Disconnects Load from Input
♦ 8-Pin DIP and SO Packages
_______________Ordering Information
* Dice are specified at T
A
= +25°C.
MAX619
Regulated 5V Charge-Pump
DC-DC Converter
________________________________________________________________
Maxim Integrated Products
1
1
2
3
4
8
7
6
5
MAX619
DIP/SO
C1+
IN
OUT
C2+
C1-
SHDN
GND
C2-
TOP VIEW
__________________Pin Configuration
MAX619
OUT
C2+
C2-
IN
SHDN
C1+
C1-
INPUT
2V to 3.6V
ON/OFF
0.22µF
OUTPUT
5V, 20mA
10µF
10µF
0.22µF
GND
__________Typical Operating Circuit
19-0227; Rev 2; 5/96
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
PART TEMP. RANGE PIN-PACKAGE
MAX619CPA 0°C to +70°C 8 Plastic DIP
MAX619CSA 0°C to +70°C 8 SO
MAX619C/D 0°C to +70°C Dice*
MAX619EPA -40°C to +85°C 8 Plastic DIP
MAX619ESA -40°C to +85°C 8 SO
MAX619MJA -55°C to +125°C 8 CERDIP
MAX619
Regulated 5V Charge-Pump
DC-DC Converter
2 ________________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 2V to 3.6V, C1 = C2 = 0.22µF, C3 = C4 = 10µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1: The MAX619 is not short-circuit protected.
PARAMETER SYMBOL MIN TYP MAX UNITS
No-Load Supply Current 75 170
µA
0.02 1
Shutdown Supply
Current
10
µA
82
Input Voltage V
IN
2 3.6 V
82
80
Efficiency Eff %
Switching Frequency 500 kHz
V
IH
0.7 x V
IN
SHDN Input Threshold
V
IL
0.4
V
±1
SHDN Input Current I
IH
±10
µA
CONDITIONS
V
IN
= 3V, I
OUT
= 30mA
2V ≤ V
IN
≤ 3.6V, I
OUT
= 0mA
V
IN
= 2V, I
OUT
= 20mA
2V
≤
V
IN
≤
3.6V, I
OUT
= 0mA,
V
SHDN
= V
IN
V
IN
= 3V, I
OUT
= 20mA
At full load
V
SHDN
= V
IN
V
IN
to GND ............................................................-0.3V to +5.5V
V
OUT
to GND.........................................................-0.3V to +5.5V
SHDN to GND..............................................-0.3V to (V
IN
+ 0.3V)
I
OUT
Continuous (Note 1)..................................................120mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C).........................471mW
CERDIP (derate 8.00mW/°C above +70°C).................640mW
Operating Temperature Ranges
MAX619C_ _ .......................................................0°C to +70°C
MAX619E_ _ ....................................................-40°C to +85°C
MAX619MJA..................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX619C/E
MAX619M
MAX619C/E
MAX619M
I
IN
2.0V ≤ V
IN
≤ 3.6V, 0mA ≤ I
OUT
≤ 20mA
3.0V ≤ V
IN
≤ 3.6V, 0mA ≤ I
OUT
≤ 50mA, MAX619C
3.0V ≤ V
IN
≤ 3.6V, 0mA ≤ I
OUT
≤ 45mA, MAX619E
Output Ripple V
RIPPLE
100 mVNo load to full load
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.
3.0V ≤ V
IN
≤ 3.6V, 0mA ≤ I
OUT
≤ 40mA, MAX619M
Output Voltage V
OUT
4.8 5.0 5.2 V
MAX619
Regulated 5V Charge-Pump
DC-DC Converter
________________________________________________________________________________________
3
TOP TRACE: OUTPUT CURRENT, 0mA to 25mA, 10mA/div
BOTTOM TRACE: OUTPUT VOLTAGE, 5mV/div, AC-COUPLED
2ms/div
LOAD-TRANSIENT RESPONSE
R
LOAD
= 250Ω, V
OUT
= 5V, I
OUT
= 20mA
TOP TRACE: V
IN
= 2V to 3V, 1V/div
BOTTOM TRACE: OUTPUT VOLTAGE, 50mV/div, AC-COUPLED
2ms/div
LINE-TRANSIENT RESPONSE (I
OUT
= 20mA)
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
60
1 10 100
EFFICIENCY vs. OUTPUT CURRENT 
AND INPUT VOLTAGE
I
OUT
(mA)
EFFICIENCY (%)
65
70
75
80
85
90
V
IN
= 1.8V
V
IN
= 3.0V
V
IN
= 2.0V
V
IN
= 3.3V
V
IN
= 3.6V
V
IN
= 2.4V
V
IN
= 2.7V
0
0
INPUT CURRENT vs. OUTPUT CURRENT
I
OUT
(mA)
I
IN
(mA)
10 20 30 40 50 60 70 80 90 100
20
40
60
80
100
120
140
160
180
200
V
IN
I
OUT
MAX
A
B
C
D
E
F
G
1.8
2.0
2.4
2.7
3.0
3.6
3.3
18
36
41
64
72
94
100
A
B
C
D
E
G
F
NO-LOAD INPUT CURRENT 
vs. INPUT VOLTAGE
V
IN
(V)
I
IN
(µA)
1.5 2.0 2.5 3.0 3.5 4.0 4.5
0.01
0.1
1.0
10
100
1000
SHDN = V
IN
SHDN = 0V
4.75
4.80
1 10 100
OUTPUT VOLTAGE vs. OUTPUT CURRENT
I
OUT
(mA)
V
OUT
(V)
4.85
4.90
4.95
5.00
5.05
V
IN
= 1.8V
V
IN
= 2.0V
V
IN
= 3.3V
V
IN
= 2.4V, 2.7V
= 3.6V
V
IN
= 3.6V
V
IN
= 3.0V
OUTPUT VOLTAGE vs. INPUT VOLTAGE
V
IN
(V)
V
OUT
(V)
2.01.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
4.94
4.96
4.98
5.00
5.02
5.04
5.06
I
OUT
= 20mA
EFFICIENCY vs. INPUT VOLTAGE
V
IN
(V)
EFFICIENCY (%)
1.5
60
65
70
75
80
85
90
I
OUT
= 10mA
2.0 2.5 3.0 3.5 4.0
P1-P3P4-P6P7-P7

MAX619CPA

Mfr. #:
Buy MAX619CPA
Manufacturer:
Maxim Integrated
Description:
Switching Voltage Regulators Regulated 5V Charge Pump DC/DC Converter
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet