ST662ABD STMicroelectronics, ST662ABD Datasheet - Page 14

• Manufacturer Part Number: ST662ABD
• Description: IC CONV DC/DC 5V-12V .03A 8SOIC
• Manufacturer: STMicroelectronics
• Type: Switched Capacitor (Charge Pump)r

Specifications of ST662ABD

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 11.4 ~ 12.6 V
• Current - Output: 30mA
• Frequency - Switching: 400kHz
• Voltage - Input: 4.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 500mW
• Output Voltage: 12.6 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2104-5

How to increase output current or output voltage capability
8
Figure 21. Application circuit for two ST662A in parallel
Table 8.
14/20
Capacitor
How to increase output current or output voltage
capability
Current capability is limited by R
connecting in parallel two or more ST662A devices; each one of them can supply 30 mA.
The
very close to the ICs on the board. If this is not possible, you can place two different
capacitors, each of them of half value, very close to the respective integrated circuit.
Figure 23
If an output voltage greater than 12 V is required, it’s possible to realize the circuit of the
following diagram
which is shown the output voltage vs. load current.
List of component
C1A
C2A
C1B
C2B
C3
C4
C5
Figure 19
show the output current capability of the proposed circuit.
shows the electric schematic. The capacitors C3, C4 and C5 must be placed
Figure
22. The relevant output current capability is shown in
Electrolytic Tantalum
Electrolytic Tantalum
Doc ID 5068 Rev 8
ON
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
of internal switches. It is possible to increase it
Type
Value (µF)
ST662AB, ST662AC
0.22
0.22
0.22
0.22
0.22
10
10
Figure 24
in