CAT661EVA-GT3 ON Semiconductor, CAT661EVA-GT3 Datasheet - Page 10

• Manufacturer Part Number: CAT661EVA-GT3
• Description: Charge Pumps CHG PUMP VOLT CONVERTER
• Manufacturer: ON Semiconductor

Specifications of CAT661EVA-GT3

• Rohs: yes
• Function: Inverting
• Output Voltage: 5 V to 11 V
• Output Current: 100 mA
• Supply Current: 0.5 mA
• Maximum Operating Temperature: + 105 C
• Package / Case: SOIC-8
• Input Voltage: 2.5 V to 5.5 V
• Maximum Power Dissipation: 500 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Switching Frequency: 12.5 KHz

Capacitor Suppliers
a design is finalized capacitor manufacturers should be surveyed for their latest product offerings.
Controlling Loss in CAT661 Applications
Table 6. CAPACITOR SUPPLIERS
The following manufacturers supply low−ESR capacitors:
Capacitor manufacturers continually introduce new series and offer different package styles. It is recommended that before
There are three primary sources of voltage loss:
Vishay/Sprague
Manufacturer
AVX/Kyocera
1. Output resistance:
2. Charge pump (C1) capacitor ESR:
Nichicon
Sanyo
VLOSS = ILOAD x ROUT, where ROUT is the
CAT661 output resistance and ILOAD is the load
current.
VLOSSC1 ≈ 4 x ESRC1 x ILOAD, where
ESRC1 is the ESR of capacitor C1.
Capacitor Type
MV−AX, UGX
TPS/TPS3
HC/HD
F55
595
402−563−6866
619−661−6835
847−843−7500
843−448−9411
Phone
http://onsemi.com
www.nichicon−us.com
10
www.avxcorp.com
www.vishay.com
www.sanyo.com
reduce noise and ripple.
approximately:
Increasing the value of C2 and/or decreasing its ESR will
The effective output impedance of a CAT661 circuit is
WEB
3. Output or reservoir (C2) capacitor ESR:
Rcircuit [ Rout 661 ) (4
VLOSSC2 = ESRC2 x ILOAD, where ESRC2 is
the ESR of capacitor C2.
[e-mail]
[e-mail]
Email
−
−
ESRC1) ) ESRC2
Comments
Aluminum
Aluminum
Aluminum
Tantalum
Tantalum