MAX17644

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4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter

広入力電圧、2.7A FET内蔵同期整流バックコンバータ、産業アプリケーションに最適

印刷可能なデータシート

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製品の詳細

パラメトリック仕様を見る： Step-Down Switching Regulators

主な特長

パラメトリック仕様を見る： Step-Down Switching Regulators

Parametric specs for Step-Down Switching Regulators

V_IN (V) (min)	4.5
V_IN (V) (max)	36
V_OUT1 (V) (min)	0.9
V_OUT1 (V) (max)	32.4
I_OUT1 (A) (max)	2.7
Switch Type	Internal
Preset V_OUT (V)	5
Output Adjust. Method	Preset Resistor
Synchronous Switching?	Yes
Power Good Signal	Yes
I_Q (mA) (typ)	0.05
# DC-DC Outputs	1
Switching Frequency (kHz)	400-2200
Design Tools	EE-Sim
Package/Pins	TQFN-CU/16
Budgetary Price (See Notes)	1.3

パラメトリック仕様を見る： Step-Down Switching Regulators

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Technical Docs

データシート

4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Jun 07, 2021

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。

ハードウェア開発

評価ボード

MAX17644AEVKIT

データシート

$34.66

説明

The MAX17644 evaluation kit (comprising the MAX17644AEVKIT#, MAX17644BEVKIT#, and MAX17644C5EVKIT# EV kits) provides proven designs to evaluate the MAX17644A, MAX17644B, and MAX17644C high-efficiency, high-voltage Himalaya synchronous DC-DC converters.

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

The MAX17644C5EVKIT# EV kit delivers up to 2.7A, with a configured 5V output (V_OUT3). The EV kit is also configured to operate at 500kHz (f_SW3) switching frequency over a 6.5V to 36V input voltage range.

The EV kits are configured to demonstrate the optimum performance and component size. The EV kits provide provisions for enable/disable settings and selecting the modes of operation (pulse-width modulation/pulsefrequency modulation/discontinuous-conduction mode [PWM/PFM/DCM]). The EV kits feature programmable input undervoltage-lockout (UVLO), adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kits also provide a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details, refer to the Benefits and Features section in the MAX17644 IC data sheet.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

評価ボード

MAX17644BEVKIT

データシート

$34.66

説明

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

評価ボード

MAX17644C5EVKIT

データシート

$34.66

説明

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

評価ボード

MAX17644AEVKIT

データシート

$34.66

説明

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

評価ボード

MAX17644BEVKIT

データシート

$34.66

説明

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

評価ボード

MAX17644C5EVKIT

データシート

$34.66

説明

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (V_OUT1). The EV kit is configured to operate at 500kHz (f_SW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (V_OUT2). The EV kit is configured to operate at 500kHz (f_SW2) switching frequency over a 6.5V to 36V input voltage range.

詳細を見る

特長

Wide 4.5V to 36V Input Voltage Range
MAX17644AEVKIT# Offers High 87.28% Efficiency (V_IN1 = 24V, V_OUT1 = 3.3V, I_OUT1 = 2.7A)
MAX17644BEVKIT# Offers High 90.77% Efficiency (V_IN2 = 24V, V_OUT2 = 5V, I_OUT2 = 2.7A)
MAX17644C5EVKIT# Offers High 90.77% Efficiency (V_IN3 = 24V, V_OUT3 = 5V, I_OUT3 = 2.7A)
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Selectable PWM, PFM, and DCM Modes of Operation
Adjustable Soft-Start Time
Active-Low RESET Outputs, with Pullup Resistor to Respective V_CC
Provision to Synchronize the Converters to an External Clock Source
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

ツールおよびモデル

EE-Sim: 設計およびシミュレーションMAX17644

デザインを作成する

サポートとトレーニング

技術質問への回答についてはナレッジベースで検索ください。

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パラメーター

Parametric specs for Step-Down Switching Regulators

V_IN (V) (min)	4.5
V_IN (V) (max)	36
V_OUT1 (V) (min)	0.9
V_OUT1 (V) (max)	32.4
I_OUT1 (A) (max)	2.7
Switch Type	Internal
Preset V_OUT (V)	5
Output Adjust. Method	Preset Resistor
Synchronous Switching?	Yes
Power Good Signal	Yes
I_Q (mA) (typ)	0.05
# DC-DC Outputs	1
Switching Frequency (kHz)	400-2200
Design Tools	generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=26769', '')
Package/Pins	TQFN-CU/16
Budgetary Price (See Notes)	1.3

See parametric specs for Step-Down Switching Regulators

主な特長

Reduces External Components and Total Cost
- No Schottky - Synchronous Operation
- Internal Compensation Components
- All-Ceramic Capacitors, Compact Layout
Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 36V Input
- Adjustable Output Voltage Range from 0.9V up to 90% of V_IN
- Delivers up to 2.7A Over the Temperature Range
- 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
- Available in a 16-Pin, 3mm x 3mm TQFN Package
Reduces Power Dissipation
- Peak Efficiency of 95.41%
- PFM and DCM Modes Enable Enhanced Light- Load Efficiency
- Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
- 2.8μA Shutdown Current
Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Adjustable and Monotonic Startup with Prebiased Output Voltage
- Built-in Output-Voltage Monitoring with Active-Low RESET
- Programmable EN/UVLO Threshold
- Overtemperature Protection
- CISPR32 Class B Compliant
- Wide -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

アプリケーション/用途

産業制御用電源
汎用PoL (Point-of-Load)
分散電源レギュレーション
基地局電源
ACアダプタトランスレギュレーション
高電圧シングルボードシステム

説明

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power supply solutions. The MAX17644 is a high-efficiency, high-voltage, Himalaya synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 4.5V to 36V. The device can deliver up to 2.7A of current. The MAX17644 is available in three variants: MAX17644A, MAX17644B, and MAX17644C. The MAX17644A and MAX17644B are fixed 3.3V and fixed 5V output parts, respectively. The MAX17644C is an adjustable output voltage (from 0.9V up to 90% of V_IN) part. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

The MAX17644 features peak-current mode control architecture. The device can be operated in the forced pulse- width modulation (PWM), or pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) to enable high efficiency under full-load and light-load conditions. The MAX17644 offers a low minimum on-time that allows high switching frequencies and a smaller solution size.

The feedback-voltage regulation accuracy over -40°C to +125°C for the MAX17644A/MAX17644B/MAX17644C is ±1.2%.The device is available in a 16-pin (3mm x 3mm) TQFN package. Simulation models are available.

簡易ブロック図

Technical Docs

データシート

4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Jun 07, 2021

サポートとトレーニング

技術質問への回答についてはナレッジベースで検索ください。

絞り込まれた検索

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INTERACTIVE Data Sheet

MAX17644

4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter

製品の詳細

主な特長

アプリケーション/用途

簡易ブロック図

Technical Docs

設計と開発

EE-Sim: 設計およびシミュレーションMAX17644

EE-Sim: 設計およびシミュレーションMAX17644

サポートとトレーニング

パラメーター

主な特長

アプリケーション/用途

説明

簡易ブロック図

Technical Docs

サポートとトレーニング

MAX17644 関連ビデオ