TC1240AECHTR Microchip Technology, TC1240AECHTR Datasheet - Page 9

• Manufacturer Part Number: TC1240AECHTR
• Description: IC CHARGE PUMP CONV SOT23A-6
• Manufacturer: Microchip Technology
• Type: Switched Capacitor (Charge Pump), Doublerr

Specifications of TC1240AECHTR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -1.8 ~ -5.5 V, ±3.6 ~ ±11 V
• Current - Output: 20mA
• Frequency - Switching: 80kHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Power - Output: 600mW
• Primary Input Voltage: 5.5V
• No. Of Outputs: 1
• Output Current: 20mA
• Voltage Regulator Case Style: SOT-23A
• No. Of Pins: 6
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Function: Step Up
• Output Voltage: 5 V to 11 V
• Maximum Operating Temperature: 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.4
The V
reduce AC impedance and minimize noise effects due
to
recommended capacitor should be a large value (at
least equal to C
5.5
The TC1240 and TC1240A are disabled when SHDN is
high, and enabled when SHDN is low. This input cannot
be allowed to float.
FIGURE 5-3:
 2003 Microchip Technology Inc.
TC1240
TC1240A
Device
the
IN
3
4
5
1
Input Supply Bypassing
Shutdown Input
OUT
V
C-
SHDN
switching
input should be capacitively bypassed to
TC1240A
IN
TC1240
1
) connected from the input to GND.
GND
3.3 µF
C
C+
1
internal
C
Test Circuit.
6
2
3
C
+
1
+
3.3 µF
to
C
2
the
+
C
V
2
R
IN
L
device.
3.3 µF
C
3
V
The
OUT
5.6
The most common application for charge pump
devices is the doubler (Figure 5-3). This application
uses two external capacitors – C
supply bypass capacitor, if necessary). The output is
equal to 2 x V
loading. Refer to Table 5-1 and Table 5-2 for capacitor
selection.
Voltage Doubler
TC1240/TC1240A
IN
minus any voltage drops due to
1
and C
DS21516C-page 9
2
(plus a power