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Part Number: MAX1697
Description: The MAX1697 ultra-small, monolithic, CMOS chargepump voltage inverter accepts an input voltage ranging...
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MAX1697
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DataSheet
General Description
MAX1697 General Description
The MAX1697 ultra-small, monolithic, CMOS chargepump voltage inverter accepts an input voltage ranging from +1.25V to +5.5V. This device features an ultra-low 12 output resistance, permitting loads of up to 60mA with maximum efficiency. The MAX1697 is available with operating frequencies of 12kHz, 35kHz, 125kHz, or 250kHz, allowing optimization of supply current or external component size. Its small external components and micropower shutdown mode make this device ideal for both battery-powered and board-level voltage conversion applications.
Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a negative supply from a +5V or +3.3V logic supply to power analog circuitry. All versions come in a 6-pin SOT23 package and deliver 60mA.
For applications with lower current requirements, the MAX1719/MAX1720/MAX1721 are pin-compatible SOT23 charge pumps that supply up to 25mA.
MAX1697 Maximum Ratings
IN to GND .............................................................-0.3V to +6V
C1+, SHDN to GND ...................................-0.3V to (VIN + 0.3V)
C1- to GND............................................(VOUT - 0.3V) to + 0.3V
OUT to GND ...........................................................+0.3V to -6V
OUT Output Current..........................................................90mA
OUT Short-Circuit to GND ...........................................Indefinite
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 14mW/ above +70) ....................1.1W
Operating Temperature Range ...........................-40 to +85
Junction Temperature......................................................+150
Storage Temperature Range .............................-65 to +150
Lead Temperature (soldering, 10sec) .............................+300
C1+, SHDN to GND ...................................-0.3V to (VIN + 0.3V)
C1- to GND............................................(VOUT - 0.3V) to + 0.3V
OUT to GND ...........................................................+0.3V to -6V
OUT Output Current..........................................................90mA
OUT Short-Circuit to GND ...........................................Indefinite
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 14mW/ above +70) ....................1.1W
Operating Temperature Range ...........................-40 to +85
Junction Temperature......................................................+150
Storage Temperature Range .............................-65 to +150
Lead Temperature (soldering, 10sec) .............................+300
MAX1697 Features
`60mA Output Current
`Low 12 Output Resistance
`150A Supply Current (MAX1697R)
`Requires Only Two 1F Capacitors (MAX1697U)
`Start-Up Current Limited
`+1.25V to +5.5V Input Voltage Range
`0.1A Logic-Controlled Shutdown
`Slew-Rate Limited to Reduce EMI
`6-Pin SOT23 Package
`Low 12 Output Resistance
`150A Supply Current (MAX1697R)
`Requires Only Two 1F Capacitors (MAX1697U)
`Start-Up Current Limited
`+1.25V to +5.5V Input Voltage Range
`0.1A Logic-Controlled Shutdown
`Slew-Rate Limited to Reduce EMI
`6-Pin SOT23 Package
MAX1697 Typical Application
·Negative Supply from +5V or +3.3V Logic Supplies
·Small LCD Panels
·GaAsFET Bias Supplies
·Handy-Terminals, PDAs
·Battery-Operated Equipment
·Small LCD Panels
·GaAsFET Bias Supplies
·Handy-Terminals, PDAs
·Battery-Operated Equipment
MAX1697 Connection Diagram
MAX1697
PDF/DataSheet Download
- Datasheet: MAX1697
- File Size: 179491 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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