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部品番号(s) : BD9528 BD9528AMUV
ROHM
ROHM Semiconductor
コンポーネント説明 : main power supply for Notebook PCs

BD9528AMUV is a 2ch switching regulator controller with high output current which can achieve low output voltage (1.0V~5.5V) from a wide input voltage range (5.5V~28V). High efficiency for the switching regulator can be realized by utilizing an external N-MOSFET power transistor.   A new technology called H3Reg (High speed, High efficiency, High performance) is a Rohm proprietary control method to realize ultra high transient response against load change. SLLM (Simple Light Load Mode) technology is also integrated to improve efficiency in light load mode, providing high efficiency over a wide load range.



For protection and ease of use, 2ch LDO (5V/3.3V (total 100mA)), the soft start function, variable frequency function, short circuit protection function with timer latch, over voltage protection, and power good function are all built in. This switching regulator is specially designed for main power supply of laptop PC.


部品番号(s) : DI-30
Power-Integrations
Power Integrations, Inc
コンポーネント説明 : 180 W PC main SFX supply

Design Idea DI-30 TOPSwitch®-GX 180 W PC main SFX supply

Design Highlights
• 180 W cont. (200 W peak) in PC SFX form factor
• Includes passive power factor correction (PFC)
• TOPSwitch-GX integrated features enable extremely low component count
• Meets 1 W standby spec (0.91 W input, 0.5 W output)
• High efficiency (71% minimum)
• Integrated line undervoltage and overvoltage detection
• Low EMI due to frequency jitter
• SOURCE referenced TO-220 tab lowers conducted EMI
• Maximum duty cycle reduction (DCMAX) prevents transformer saturation for fault and transient loads
• Uses conventional magamp for 3.3 V output
• Meets CISPR22B/EN55022B conducted EMI

Intersil
Intersil
コンポーネント説明 : High-Efficiency, Quad-Output, main power supply Controllers for Notebook Computers

High-Efficiency, Quad-Output, main power supply Controllers for Notebook Computers



The ISL6236A dual step-down, switch-mode power-supply (SMPS) controller generates logic-supply voltages in

battery-powered systems. The ISL6236A includes two pulse-width modulation (PWM) controllers, 5V/3.3V and

1.5V/1.05V. The output of SMPS1 can also be adjusted from 0.7V to 5.5V. The SMPS2 output can be adjusted from 0V to 2.5V by setting REFIN2 voltage.



Features

• Wide Input Voltage Range 4.5V to 25V

• Dual Fixed 1.05V/3.3V and 1.5V/5.0V Outputs or Adjustable 0.7V to 5.5V (SMPS1) and 0V to 2.5V (SMPS2), ±1.5% Accuracy

• Secondary Feedback Input (maintains Charge Pump Voltage)

• 1.7ms Digital Soft-Start and Independent Shutdown

• Fixed 3.3V/5.0V, or Adjustable Output 0.7V to 4.5V, ±1.5% (LDO): 200mA

• 3.3V Reference Voltage ±2.0%: 5mA

• 2.0V Reference Voltage ±1.0%: 50µA

• Constant ON-TIME Control with 100ns Load-Step Response

• Frequency Selectable

•rDS(ON) Current Sensing

• Programmable Current Limit with Foldback Capability

• Selectable PWM, Skip or Ultrasonic Mode

• BOOT Voltage Monitor with Automatic Refresh

• Independent POK1 and POK2 Comparators

• Soft-Start with Pre-Biased Output and Soft-Stop

• Independent ENABLE

• High Efficiency - up to 97%

• Very High Light Load Efficiency (Skip Mode)

• 5mW Quiescent power Dissipation

• Thermal Shutdown

• Extremely Low Component Count

• Pb-Free Plus Anneal Available (RoHS Compliant)



Applications

• Notebook and Sub-Notebook Computers

• PDAs and Mobile Communication Devices

• 3-Cell and 4-Cell Li+ Battery-powered Devices

• DDR1, DDR2, and DDR3 power Supplies

• Graphic Cards

• Game Consoles

• Telecommunications


コンポーネント説明 : High-Efficiency, Quad-Output, main power supply Controllers for Notebook Computers

High-Efficiency, Quad-Output, main power supply Controllers for Notebook Computers



The ISL6236 dual step-down, switch-mode power-supply (SMPS) controller generates logic-supply voltages in

battery-powered systems. The ISL6236 include two pulse-width modulation (PWM) controllers, 5V/3.3V and

1.5V/1.05V. The output of SMPS1 can also be adjusted from 0.7V to 5.5V. The SMPS2 output can be adjusted from 0V to 2.5V by setting REFIN2 voltage.



Features

• Wide Input Voltage Range 5.5V to 25V

• Dual Fixed 1.05V/3.3V and 1.5V/5.0V Outputs or Adjustable 0.7V to 5.5V (SMPS1) and 0V to 2.5V(SMPS2), ±1.5% Accuracy

• Secondary Feedback Input (maintains Charge Pump Voltage)

• 1.7ms Digital Soft-Start and Independent Shutdown

• Fixed 3.3V/5.0V, or Adjustable Output 0.7V to 4.5V, ±1.5% (LDO): 200mA

• 3.3V Reference Voltage ±2.0%: 5mA

• 2.0V Reference Voltage ±1.0%: 50µA

• Constant ON-time Control with 100ns Load-Step Response

• Frequency Selectable

• rDS(ON) Current Sensing

• Programmable Current Limit with Foldback Capability

• Selectable PWM, Skip or Ultrasonic Mode

• BOOT Voltage Monitor with Automatic Refresh

• Independent POK1 and POK2 Comparators

• Soft-Start with Pre-Biased Output and Soft-Stop

• Independent ENABLE

• High Efficiency - up to 97%

• Very High Light Load Efficiency (Skip Mode)

• 5mW Quiescent power Dissipation

• Thermal Shutdown

• Extremely Low Component Count

• Pb-Free (RoHS Compliant)



Applications

• Notebook and Sub-Notebook Computers

• PDAs and Mobile Communication Devices

• 3-Cell and 4-Cell Li+ Battery-powered Devices

• DDR1, DDR2 and DDR3 power Supplies

• Graphic Cards

• Game Consoles

• Telecommunications


コンポーネント説明 : High-Efficiency, Quad-Output, main power-supply Controllers for Notebook Computers

The MAX8732A/MAX8733A/MAX8734A dual step-down, switch-mode power-supply (SMPS) controllers generate logic-supply voltages in battery-powered systems. The MAX8732A/MAX8733A/MAX8734A include two pulse width modulation (PWM) controllers, adjustable from 2V to 5.5V or fixed at 5V and 3.3V. These devices feature two linear regulators providing 5V and 3.3V always-on out puts. Each linear regulator provides up to 100mA output

current with automatic linear-regulator bootstrapping to the main SMPS outputs. The MAX8732A/MAX8733A/MAX8734A include on-board power-up sequencing, a power-good (PGOOD) output, digital soft-start, and internal soft-stop output discharge that prevents negative voltages on shutdown. Additionally, the outputs are highimpedance when VCCfalls below its UVLO set point while the outputs are enabled.



Features

♦No Current-Sense Resistor Needed (MAX8734A)

♦Accurate Current Sense with Current-Sense Resistor (MAX8732A/MAX8733A)

♦1.5% Output Voltage Accuracy

♦3.3V and 5V 100mA Bootstrapped Linear Regulators

♦Internal Soft-Start and Soft-Stop Output Discharge

♦Quick-PWM with 100ns Load Step Response

♦3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™)

♦4.5V to 24V Input Voltage Range

♦Enhanced Ultrasonic Pulse-Skipping Mode (25kHz min)

power-Good (PGOOD) Signal

♦Overvoltage Protection Enable/Disable



 


コンポーネント説明 : High Efficiency, main power supply Controllers for Notebook Computers

High Efficiency, main power supply Controllers for Notebook Computers



General Description

The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. An alternative LGATE1

output LG1_CP can be used for external charge pump (RT8205B). And an optional external charge pump can be monitored through SECFB (RT8205C). This device also features 2 linear regulators providing fixed 5V and 3.3V outputs. The linear regulator each provides up to 70mA output current with automatic linear-regulator bootstrapping to the PWM outputs. The RT8205A/B/C includes on-board power-up sequencing, the power-good output, internal soft start, and internal soft-discharge output that prevents negative voltages on shutdown.



Features

Wide Input Voltage Range 6V to 25V

Dual Fixed 5V/3.3V Outputs or Adjustable from 2V to 5.5V, 1.5% Accuracy.

Alternative LGATE1 Output (LG1_CP) acts as Clock for Charge Pump (RT8205B)

Secondary Feedback Input maintains Charge Pump Voltage (RT8205C)

Fixed 3.3V and 5V LDO Output : 70mA

2V Reference Voltage ±1% : 50μA

Constant ON-Time Control with 100ns Load Step Response

Frequency Selectable via TONSEL Setting

RDS(ON)Current Sensing and Programmable Current Limit combined with Enable Control

Selectable PWM, DEM, or Ultrasonic Mode

Internal Soft-Start and Soft-Discharge

High Efficiency up to 97%

5mW Quiescent power Dissipation

Thermal Shutdown

RoHS Compliant and Halogen Free



Applications

Notebook and Sub-Notebook Computers

3-Cell and 4-Cell Li+ Battery-powered Devices

 


部品番号(s) : BD9528MUV BD9528MUV-E2
ROHM
ROHM Semiconductor
コンポーネント説明 : main power supply ICs for Note PC (Linear Regulator Integrated)

● Description

BD9528MUV is a 2ch switching regulator controller with high output current which can achieve low output voltage (1.0V~5.5V) from a wide input voltage range (5.5V~ 28V). High efficiency for the switching regulator can be realized by utilizing an external N-MOSFET power transistor. A new technology called H3RegTM(High speed, High efficiency, High performance) is a Rohm proprietary control method to realize ultra high transient response against load change. SLLM (Simple Light Load Mode) technology is also integrated to improve efficiency in light load mode, providing high efficiency over a wide load range. For protection and ease of use, 2ch LDO (5V/100mA, 3.3V/100mA), the soft start function, variable frequency function, short circuit protection function with timer latch, over voltage protection, and power good function are all built in. This switching regulator is specially designed for main power supply of laptop PC.



● Features

1) 2ch H3REGTM DC/DC Converter controller

2) Adjustable Simple Light Load Mode (SLLM), Quiet Light Load Mode (QLLM) and Forced continuous Mode

3) Thermal Shut Down (TSD), Under Voltage LockOut (UVLO), Over Current Protection (OCP),

Over Voltage Protection (OVP), Short circuit protection with 0.75ms timer-latch (SCP)

4) Soft start function to minimize rush current during startup

5) Switching Frequency Variable (f=200kHz~ 500kHz)

6) Built-in power good circuit

7) Built-in 2ch Linear regulator (5V/100mA,3.3V/100mA)

8) Built in reference voltage(0.7V)

9) VQFN032V5050 package

10) Built-in BOOT-Di

11) Built-in output discharge



● Applications

Laptop PC, Desktop PC, LCD-TV, Digital Components


部品番号(s) : RT8203
Richtek
Richtek Technology
コンポーネント説明 : High-Efficiency, Quad Output, main power-supply Controllers for Notebook Computers

The RT8203 dual step-down, Switch Mode power supply (SMPS) controllers generate logic-supply voltages in battery-powered systems. The RT8203 include two pulse-width modulation (PWM) controllers, adjustable from 2V to 5.5V or fixed at 5V and 3.3V. These devices feature two linear regulators providing 5V and 3.3V always-on outputs.

Purpose
● The HTOL test is to demonstrate the quality or
   reliability of device subjects to the
   specified conditions over an extended time period.
● The ESD tests are used to classify the
   electrostatic discharge of microcircuits.
● The latch-up test is used to check IC latch-up characteristics.
● The environment tests are to ensure the process
   of assembly of this package type that
   meets Richtek quality specifications.

Applications
• Notebook and Subnotebook Computers
• PDAs and Mobile Communication Devices
• 3- and 4-Cell Li+ Battery-powered Devices

Richtek
Richtek Technology
コンポーネント説明 : High Efficiency, main power supply Controller for Notebook Computer

General Description

The RT8223N is a dual step-down, switch-mode power supply controller generating logic-supply voltages in battery-powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and also features fixed 5V/3.3V linear regulators.



Features

Constant On-time Control with 100ns Load Step Response

Wide Input Voltage Range : 6V to 25V

Dual Adjustable Outputs from 2V to 5.5V

Fixed 3.3V and 5V LDO Output : 100mA

2V Reference Voltage

Frequency Selectable via TONSEL Setting

4700ppm/°C RDS(ON)Current Sensing

Programmable Current Limit Combined with Enable Control

Selectable PWM, DEM, or Ultrasonic Mode

Internal Soft-Start and Soft-Discharge

High Efficiency up to 97%

5mW Quiescent power Dissipation

Thermal Shutdown

RoHS Compliant and Halogen Free



Applications

Notebook and Sub-Notebook Computers

3-Cell and 4-Cell Li+ Battery-powered Devices


コンポーネント説明 : High-Efficiency, Quad Output, main power supply Controllers for Notebook Computers

General Description
The MAX8744A/MAX8745A are dual step-down, switch mode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input rip ple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs, compared to 180° out-of-phase regulators where the duty-cycle overlap occurs when the input drops below 10V.

Features
♦ Fixed-Frequency, Current-Mode Control
♦ 40/60 Optimal Interleaving
♦ Internal BST Switches
♦ Internal 5V, 100mA Linear Regulator
♦ Auxiliary Linear-Regulator Driver (12V or Adjustable Down to 1V)
♦ Dual Mode™ Feedback—3.3V/5V Fixed or Adjustable Output Voltages
♦ 200kHz/300kHz/500kHz Switching Frequency
♦ Undervoltage and Thermal-Fault Protection
♦ Overvoltage-Fault Protection (MAX8744A Only)
♦ 6V to 26V Input Range
♦ 2V ±0.75% Reference Output
♦ Independent Enable Inputs and power-Good Outputs
♦ Soft-Start and Soft-Shutdown (Voltage Ramp)
♦ 8μA (typ) Shutdown Current

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