MIC2561-1YM TR Micrel Inc, MIC2561-1YM TR Datasheet - Page 8

• Manufacturer Part Number: MIC2561-1YM TR
• Description: PCMCIA Card Sw. Matrix -
• Manufacturer: Micrel Inc
• Type: PCMCIA/Cardbus Switchr

Specifications of MIC2561-1YM TR

• Number Of Outputs: 2
• Rds (on): 1 Ohm
• Internal Switch(s): Yes
• Current Limit: 200mA
• Voltage - Input: 3.3V, 5V, 12V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MIC2561-1YMTR; MIC2561-1YMTR

MIC2561
supplies generally have a quiescent current draw of a few
milliamperes, which is far more than the microamperes used
by the MIC2561. The charge pump of Figure 5 provides this
low current, using about 100µA when enabled. When V
= 12V is selected, however, the on-demand V
must be used, as this charge pump cannot deliver the current
required for Flash memory programming. The Schottky diode
may not be necessary, depending on the configuration of the
on-demand +12V generator and whether any other loads are
on this line.
MIC2561
Figure 5. Circuit for generating bias drive for the VCC switches when +12V is not readily available.
Drive Enable
+5V
0.01µF
2
3
4
5
6
7
PP
4.7kΩ
generator
14
13
12
11
10
PP OUT
9
8
1N914
0.1µF
8
1N914
0.02µF
Switched V PP IN
(Optional Schottky)
January 2005
Micrel