ST662A_04 STMICROELECTRONICS [STMicroelectronics], ST662A_04 Datasheet - Page 8

• Manufacturer Part Number: ST662A_04
• Description: DC-DC CONVERTER FROM 5V TO 12V, 0.03A FOR FLASH MEMORY PROGRAMMING SUPPLY
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST662A
HOW TO INCREASE OUTPUT CURRENT OR OUTPUT VOLTAGE CAPABILITY
Current capability is limited by R
two or more ST662A devices; each one of them can supply 30mA. The figure 19 shows the electric
schematic. The capacitors C
possible, you can place two different capacitors, each of them of half value, very close to the respective
integrated circuit.
Fig. 21 show the Output Current capability of the proposed circuit.
If an output voltage greater than 12V is required, it’s possible to realize the circuit of the following diagram
(figure 20). The relevant Output Current capability is shown in figure 22 in which is shown the output
voltage vs load current.
Figure 19 : Application Circuit for Two ST662A in Parallel
TABLE 2: List of Components
8/13
CAPACITOR
C1A
C2A
C1B
C2B
C3
C4
C5
3
, C
ON
4
and C
of internal switches. It is possible to increase it connecting in parallel
5
must be placed very close to the ICs on the board. If this is not
Electrolytic Tantalum
Electrolytic Tantalum
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
TYPE
VALUE (µF)
0.22
0.22
0.22
0.22
0.22
10
10