LM2765M6 National Semiconductor, LM2765M6 Datasheet - Page 7

• Manufacturer Part Number: LM2765M6
• Manufacturer: National Semiconductor
• Type: Step Upr

Specifications of LM2765M6

• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Package Type: SOT-23
• Pin Count: 6
• Mounting: Surface Mount
• Output Voltage: 3.6 to 11V
• Output Current: 20mA
• Lead Free Status / RoHS Status: Not Compliant

Nichicon Corp.
AVX Corp.
Sprague
Sanyo
Murata
Taiyo Yuden
Tokin
Application Information
Other Applications
PARALLELING DEVICES
Any number of LM2765s can be paralleled to reduce the
output resistance. Each device must have its own pumping
capacitor C
as shown in Figure 3. The composite output resistance is:
CASCADING DEVICES
Cascading the LM2765s is an easy way to produce a greater
voltage (A two-stage cascade circuit is shown in Figure 4).
The effective output resistance is equal to the weighted sum
of each individual device:
Manufacturer
1
, while only one output capacitor C
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FIGURE 3. Lowering Output Resistance by Paralleling Devices
Phone
FIGURE 4. Increasing Output Voltage by Cascading Devices
TABLE 1. Low ESR Capacitor Manufacturers
(Continued)
out
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is needed
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www.murata.com
www.vishay.com
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7
Note that increasing the number of cascading stages is
pracitically limited since it significantly reduces the efficiency,
increases the output resistance and output voltage ripple.
PL & PF series, through-hole aluminum electrolytic
TPS series, surface-mount tantalum
593D, 594D, 595D series, surface-mount tantalum
OS-CON series, through-hole aluminum electrolytic
Ceramic chip capacitors
Ceramic chip capacitors
Ceramic chip capacitors
R
out
= 1.5R
Capacitor Type
out_1
+ R
10128119
out_2
10128120
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