先頭に戻る

2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs

高効率同期整流バックレギュレータ、高性能、広温度範囲、および小型サイズのバランスを実現

製品の詳細

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power supply solutions. MAX17623 and MAX17624 are high-frequency synchronous Himalaya step-down DC-DC converters with integrated MOSFETs and internal compensation. MAX17623 and MAX17624 have an input-voltage range of 2.9V to 5.5V, supports up to 1A, and output voltage can be adjusted from 0.8V to 3.3V.

The MAX17623 and MAX17624 employ peak-current mode control architecture under steady-state operation. To reduce input-inrush current, the devices offer a fixed 1ms soft-start time. Both devices feature selectable PWM for fixed frequency operation, or PFM mode for better efficiency at light loads. When PWM mode is selected, MAX17623 operates at a fixed 2MHz switching frequency and MAX17624 operates at a fixed 4MHz switching frequency. MAX17623 offers output voltages from 0.8V to 1.5V, and MAX17624 offers output voltages from 1.5V to 3.3V.

The MAX17623 and MAX17624 devices are available in a compact 8-pin, 2mm × 2mm TDFN package.

主な機能

  • Easy to Use
    • 2.9V to 5.5V Input
    • Adjustable 0.8V to 3.3V Output
    • ±1% Feedback Accuracy
    • Up to 1A Output Current
    • Fixed 2MHz or 4MHz Operation
    • 100% Duty-Cycle Operation
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM- or PFM-Mode of Operation
    • Shutdown Current as Low as 0.1μA (typ)
  • Flexible Design
    • Internal Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (PGOOD Pin)
  • Robust Operation
    • Overtemperature Protection
    • Overcurrent Protection
    • -40°C to +125°C Ambient Operating
    • Temperature/ -40°C to +150°C Junction Temperature

アプリケーション/用途

  • PoL (ポイントオブロード)電源
  • 標準5Vレール電源
  • バッテリ動作アプリケーション
  • 分散電源システム
  • 産業用センサーおよびプロセス制御
Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 2.9
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 3.3
IOUT1 (A) (max) 1
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
ICC (mA) (typ) 0.04
# DC-DC Outputs 1
Switching Frequency (kHz) 2000
Design Tools EE-Sim
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
$0.44 @1k
全て表示する

簡略化されたブロック図

MAX17623, MAX17624: Typical Application Circuit MAX17623, MAX17624: Typical Application Circuit Zoom icon

技術資料

設計と開発

以下タイトルをクリックして詳細をご覧ください。

説明

The MAX17623/MAX17624 evaluation kits (EV kits) provide a proven design to evaluate the performance of the MAX17623/MAX17624 converters. Each of these devices operates over an input range from 2.9V to 5.5V and delivers up to 1A output current. The devices are configured to demonstrate optimum performance and component sizes in the EV kits.

The MAX17623 converter delivers up to 1A at a switching frequency of 2MHz. The converter is configured for a 1.5V output over a 2.9V to 5.5V input range.

The MAX17624 converter delivers up to 1A at a switching frequency of 4MHz. The converter is configured for a 3.3V output over a 3.6V to 5.5V input range.

The EV kits feature provisions for selecting Mode of operation (PWM/PFM) enabling or disabling the output and PGOOD signal. The MAX17623/MAX17624 converter data sheet provides a complete description of the parts, that should be read in conjunction with this data sheet prior to operating the EV kits.

詳細を見る

特長

  • 2.9V to 5.5V Input-Voltage Range
  • MAX17623 Offers High 92.2% Efficiency (VIN = 3.3V, VOUT = 1.5V, IOUT = 300 mA)
  • MAX17624 Offers High 94.5% Efficiency (VIN = 5V, VOUT = 3.3V, IOUT = 500 mA)
  • Selectable PWM and PFM Modes of Operation
  • Internal 1ms Soft-Start Time
  • PGOOD Output with Pullup Resistor to Respective Input Voltages
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested

説明

The MAX17623/MAX17624 evaluation kits (EV kits) provide a proven design to evaluate the performance of the MAX17623/MAX17624 converters. Each of these devices operates over an input range from 2.9V to 5.5V and delivers up to 1A output current. The devices are configured to demonstrate optimum performance and component sizes in the EV kits.

The MAX17623 converter delivers up to 1A at a switching frequency of 2MHz. The converter is configured for a 1.5V output over a 2.9V to 5.5V input range.

The MAX17624 converter delivers up to 1A at a switching frequency of 4MHz. The converter is configured for a 3.3V output over a 3.6V to 5.5V input range.

The EV kits feature provisions for selecting Mode of operation (PWM/PFM) enabling or disabling the output and PGOOD signal. The MAX17623/MAX17624 converter data sheet provides a complete description of the parts, that should be read in conjunction with this data sheet prior to operating the EV kits.

詳細を見る

特長

  • 2.9V to 5.5V Input-Voltage Range
  • MAX17623 Offers High 92.2% Efficiency (VIN = 3.3V, VOUT = 1.5V, IOUT = 300 mA)
  • MAX17624 Offers High 94.5% Efficiency (VIN = 5V, VOUT = 3.3V, IOUT = 500 mA)
  • Selectable PWM and PFM Modes of Operation
  • Internal 1ms Soft-Start Time
  • PGOOD Output with Pullup Resistor to Respective Input Voltages
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested

/jp/design/design-tools/ee-sim.html?

ツールおよびモデル

EE-Sim: 設計およびシミュレーションMAX17623

デザインを作成する

サポートとトレーニング

ナレッジベースを検索して技術質問への回答を探す。

絞り込まれた検索

マキシムでは、お客様の技術的質問にお答えするため、アプリケーションエンジニアの専任チームも配置しています。 サポートセンター をご覧ください。

パラメーター

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 2.9
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 3.3
IOUT1 (A) (max) 1
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
ICC (mA) (typ) 0.04
# DC-DC Outputs 1
Switching Frequency (kHz) 2000
Design Tools EE-Sim
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
$0.44 @1k

主な機能

  • Easy to Use
    • 2.9V to 5.5V Input
    • Adjustable 0.8V to 3.3V Output
    • ±1% Feedback Accuracy
    • Up to 1A Output Current
    • Fixed 2MHz or 4MHz Operation
    • 100% Duty-Cycle Operation
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM- or PFM-Mode of Operation
    • Shutdown Current as Low as 0.1μA (typ)
  • Flexible Design
    • Internal Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (PGOOD Pin)
  • Robust Operation
    • Overtemperature Protection
    • Overcurrent Protection
    • -40°C to +125°C Ambient Operating
    • Temperature/ -40°C to +150°C Junction Temperature

アプリケーション/用途

  • PoL (ポイントオブロード)電源
  • 標準5Vレール電源
  • バッテリ動作アプリケーション
  • 分散電源システム
  • 産業用センサーおよびプロセス制御

説明

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power supply solutions. MAX17623 and MAX17624 are high-frequency synchronous Himalaya step-down DC-DC converters with integrated MOSFETs and internal compensation. MAX17623 and MAX17624 have an input-voltage range of 2.9V to 5.5V, supports up to 1A, and output voltage can be adjusted from 0.8V to 3.3V.

The MAX17623 and MAX17624 employ peak-current mode control architecture under steady-state operation. To reduce input-inrush current, the devices offer a fixed 1ms soft-start time. Both devices feature selectable PWM for fixed frequency operation, or PFM mode for better efficiency at light loads. When PWM mode is selected, MAX17623 operates at a fixed 2MHz switching frequency and MAX17624 operates at a fixed 4MHz switching frequency. MAX17623 offers output voltages from 0.8V to 1.5V, and MAX17624 offers output voltages from 1.5V to 3.3V.

The MAX17623 and MAX17624 devices are available in a compact 8-pin, 2mm × 2mm TDFN package.

簡略化されたブロック図

MAX17623, MAX17624: Typical Application Circuit MAX17623, MAX17624: Typical Application Circuit Zoom icon

技術資料

サポートとトレーニング

ナレッジベースを検索して技術質問への回答を探す。

絞り込まれた検索

マキシムでは、お客様の技術的質問にお答えするため、アプリケーションエンジニアの専任チームも配置しています。 サポートセンター をご覧ください。