MAX1697 60mA, SOT23 Inverting Charge Pump with Shutdown

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 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.

Key Features

Applications/Uses

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
0.1µA Logic-Controlled Shutdown
Slew-Rate Limited to Reduce EMI
6-Pin SOT23 Package

	Battery-Operated Equipment
	GaAsFET Bias Supplies
	Handy-Terminals, PDAs
	Negative Supply from +5V or +3.3V Logic Supplies
	Small LCD Panels

Key Specifications: Charge Pumps

Part Number

Topology

V_IN (min) (V)

V_IN (max) (V)

Operating Current, I_CC (max) (mA)

Unadjusted V_OUT (V)

I_OUT (typ) (A)

Operating Frequency (kHz)

Features

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX1697

Inverter
Unregulated

1.25

5.5

0.3

-V_IN

0.06

250

•

Shutdown

Yes

SOT-23/6

-40 to +85

$0.99 @ 1k

See All Charge Pumps (50)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Reliability Reports


		Show FIT data for:

		Reliability Report: MAX1697TEUT.pdf

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-18 of 18

MAX1697

Free
Sample

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Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1697TEUT/V#TG16

-40°C to +85°C

See data sheet

MAX1697SEUT#TG16

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6FH-6*

-40°C to +85°C

RoHS/Lead-Free: RoHS Qualified
Materials Analysis

MAX1697UEUT#TG16

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6FH-6*

-40°C to +85°C

RoHS/Lead-Free: RoHS Qualified
Materials Analysis

MAX1697TEUT#TG16

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6FH-6*

-40°C to +85°C

RoHS/Lead-Free: RoHS Qualified
Materials Analysis

MAX1697REUT#TG16

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6FH-6*

-40°C to +85°C

RoHS/Lead-Free: RoHS Qualified
Materials Analysis

MAX1697TEUT+

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1697TEUT+T

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1697SEUT+

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*

-40°C to +85°C

See data sheet
Materials Analysis

MAX1697SEUT+T

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*

-40°C to +85°C

See data sheet
Materials Analysis

MAX1697UEUT#G16

SOT-23;6 pin;9 mm²
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6FH-6*

-40°C to +85°C

RoHS/Lead-Free: RoHS Qualified
Materials Analysis

MAX1697UEUT