MAX1697
MAX1697
PRODUCTION60mA, SOT23 Inverting Charge Pump with Shutdown
EMI-Friendly Ultra-Small Charge Pump
- Part Models
- 6
- 1ku List Price
- Starting From $1.72
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Overview
- 60mA Output Current
- Low 12Ω Output Resistance
- 150µA Supply Current (MAX1697R)
- Requires Only Two 1µF Capacitors (MAX1697U)
- Start-Up Current Limited
- +1.25V to +5.5V Input Voltage Range
- Slew-Rate Limited to Reduce EMI
The MAX1697 ultra-small, monolithic, CMOS charge-pump voltage inverter accepts an input voltage ranging from +1.25V to +5.5V. This device features an ultra-low 12Ω 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.
Applications
- Battery-Operated Equipment
- GaAsFET Bias Supplies
- Handy-Terminals, PDAs
- Negative Supply from +5V or +3.3V Logic Supplies
- Small LCD Panels
Documentation
Data Sheet 1
Design Note 3
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1697REUT+ | SOT_23 | ||
| MAX1697REUT+T | SOT_23 | ||
| MAX1697TEUT+ | SOT_23 | ||
| MAX1697TEUT+T | SOT_23 | ||
| MAX1697UEUT+ | SOT_23 | ||
| MAX1697UEUT+T | SOT_23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571C PIN/ERRATA |
||
| MAX1697REUT+T | PRODUCTION | |
| MAX1697TEUT+ | PRODUCTION | |
| MAX1697TEUT+T | PRODUCTION | |
| MAX1697UEUT+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Charge Pumps 1 | ||
| MAX1719 | PRODUCTION | SOT23, Switched-Capacitor Voltage Inverters with Shutdown |