MAX679EUA Maxim Integrated Products, MAX679EUA Datasheet - Page 5
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MAX679EUA
Manufacturer Part Number
MAX679EUA
Description
Charge Pumps
Manufacturer
Maxim Integrated Products
Specifications of MAX679EUA
Function
Step Up
Output Voltage
3.3 V
Output Current
20 mA
Maximum Operating Temperature
+ 85 C
Package / Case
uMAX-8
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX679EUA
Manufacturer:
MAXIM
Quantity:
110
Part Number:
MAX679EUA
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX679EUA+T
Manufacturer:
FREESCALE
Quantity:
439
Figure 1. Block Diagram
SHDN
FSET
GND
_______________________________________________________________________________________
OUT
SW
T
C
SC
PULSER
=
=
=
=
SWITCH CONNECTS OUT TO IN DURING START-UP
TRANSFER PHASE OF PUMP
CHARGE PHASE OF PUMP (FULL STRENGTH)
CHARGE PHASE OF PUMP (REDUCED STRENGTH)
MAX679
1.25V REF
CHIP SUPPLY
Regulated 3.3V Charge Pump
EAOUT (1 = OUTPUT OVER REGULATION POINT)
CONTROL LOGIC
2
OSCILLATOR +
IN
12
COUNTER
RESET
P6
CLOCK
SW
C
T
SC
P5
OUT
SC
C
P4
P1
T
SW
10% OF N1
C
T
P3
P2
N1
PGND
C1+
C1-
C1
5