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MAX1044ESA

Name: MAX1044ESA
Rating: 4.7 (12 reviews)

IC REG CHARG PUMP INV 20MA 8SOIC

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Mfr。パート #MAX1044ESA
パッケージ SOIC-8
データシート
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仕様

Package	Tube,Tube
ProductStatus	Obsolete
Function	Ratiometric
OutputConfiguration	Positive or Negative
Topology	Charge Pump
OutputType	Fixed
NumberofOutputs	1
Voltage-Input(Min)	1.5V
Voltage-Input(Max)	10V
Voltage-Output(Min/Fixed)	-Vin, nVin, Vin/2
Current-Output	20mA
Frequency-Switching	10kHz
SynchronousRectifier	No
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概要

Description

MAX1044ESA is Maxim Integrated’s (now part of Analog Devices) switched-capacitor DC-DC converter (a charge-pump inverter). It generates a negative rail from a positive supply without any inductors, using external flying capacitors and an internal/external clock to drive the pump. The ESA suffix denotes a specific package variant.
Typical use: create a negative supply (for example, -V) from a single positive supply in portable/low‑power analog circuits—op-amps, ADC biasing, LCD drivers, etc.—where space and component count matter.
Key points:
- No inductor required; uses flying capacitors.
- Single-supply operation; generates negative output rail.
- Compact package (ESA variant) suitable for surface-mount applications.
- Output current and efficiency depend on load and exact variant—check the datasheet for pinout, input range, max output current, clock requirements, and protection features.
For exact specs, pinout, and recommendations, see the MAX1044ESA datasheet.

Features

I don’t have the exact specs for MAX1044ESA without the datasheet. The MAX1044 family (Maxim) generally features a monolithic switching regulator with:
- Integrated high-side switch for a buck regulator
- Wide input voltage range
- Fixed or adjustable output versions
- High efficiency and good transient response
- Internal current limit and over-temperature protection
- Undervoltage lockout
- Enable/shutdown control
- Soft-start to limit inrush
- Short-circuit protection
- Small 8-pin package options (MSOP/SOIC) with few external parts
- External components: inductor, capacitor, and a catch diode (or synchronous rectification in some variants)
For precise features and exact values (input range, output voltages, efficiency, switching frequency, protections), please share the datasheet/link for MAX1044ESA.

Package

MAX1044ESA is in a 16‑pin small‑outline IC package (SOIC), Pb‑free.

Pinout

8 pins. It is an inverting charge-pump DC-DC converter (voltage inverter) that uses external capacitors to generate a negative output from a positive input (i.e., provides a negative supply rail from a single positive supply).

Manufacturer

Manufacturer: Maxim Integrated (MAXIM Integrated Products), a fabless semiconductor company specializing in analog and mixed-signal integrated circuits. As of 2021, Maxim Integrated is part of Analog Devices.

Application

Application areas for MAX1044ESA:
- Switching regulators (buck/boost) and general power-management ICs
- Isolated and non-isolated DC-DC converters
- Battery-powered/portable devices
- Automotive electronics
- Industrial and telecom equipment
- Computer/consumer electronics power rails
- Instrumentation and test equipment

Equivalent

Equivalent products (switched-capacitor voltage inverters) to MAX1044ESA:
- LTC1044 (Linear Technology, now Analog Devices)
- ICL7660 / ICL7660S (Intersil/Renesas)
- TI TC7660 / TC7660A / TC7662 (Texas Instruments)
All are functionally similar voltage-inverter devices.