Datasheet > MCP1661

MCP1661

更新时间： 2024-11-17 01:14:35

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
34页	1011K
描述
High-Voltage Integrated Switch PWM Boost Regulator with UVLO

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MCP1661 数据手册

MCP1661

High-Voltage Integrated Switch PWM Boost Regulator with UVLO

Features

General Description

• 36V, 800 m Integrated Switch

• Up to 92% Efficiency

The MCP1661 device is a compact, high-efficiency,

fixed-frequency, non-synchronous step-up DC-DC

converter which integrates a 36V, 800 m NMOS

• High Output Voltage Range: up to 32V

• 1.3A Peak Input Current Limit:

switch. It provides

a space-efficient high-voltage

step-up power supply solution for applications powered

by either two-cell or three-cell alkaline, Ultimate Lithium,

NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries.

- I_OUT> 200 mA @ 5.0V V_IN, 12V V_OUT

- I_OUT> 125 mA @ 3.3V V_IN, 12V V_OUT

- I_OUT> 100 mA @ 4.2V V_IN, 24V V_OUT

• Input Voltage Range: 2.4V to 5.5V

• Undervoltage Lockout (UVLO):

- UVLO @ V_INRising: 2.3V, typical

- UVLO @ V_INFalling: 1.85V, typical

• No Load Input Current: 250 µA, typical

The integrated switch is protected by the 1.3A

cycle-by-cycle inductor peak current limit operation.

There is an output overvoltage protection which turns

off switching in case the feedback resistors are

accidentally disconnected or the feedback pin is

short-circuited to GND.

Low-voltage technology allows the regulator to start-up

without high inrush current or output voltage overshoot

from a low-voltage input. The device features a UVLO

which avoids start-up and operation with low inputs or

discharged batteries for two cell-powered applications.

• Sleep mode with 200 nA Typical Quiescent

Current

• PWM Operation with Skip mode: 500 kHz

• Feedback Voltage Reference: V_FB= 1.227V

• Cycle-by-Cycle Current Limiting

For standby applications (EN = GND), the device stops

switching, enters Sleep mode and consumes 200 nA

(typical) of input current.

• Internal Compensation

• Inrush Current Limiting and Internal Soft Start

• Output Overvoltage Protection (OVP) in the event

of:

MCP1661 is easy to use and allows creating classic

boost, SEPIC or flyback DC-DC converters within a

small Printed Circuit Board (PCB) area. All

compensation and protection circuitry is integrated to

minimize the number of external components. Ceramic

input and output capacitors are used.

- Feedback pin shorted to GND

- Disconnected feedback divider

• Overtemperature Protection

• Easily Configurable for SEPIC or Flyback

Topologies

Package Types

• Available Packages:

- 5-Lead SOT-23

MCP1661

- 8-Lead 2x3 TDFN

SOT-23

GND

V_FB

V_IN

Applications

• Two and Three-Cell Alkaline, Lithium Ultimate and

NiMH/NiCd Portable Products

4 EN

• Single-Cell Li-Ion to 5V, 12V or 24V Converters

• LCD Bias Supply for Portable Applications

• Camera Phone Flash

MCP1661

2x3 TDFN*

• Portable Medical Equipment

V_FB

• Hand-Held Instruments

S_GND

P_GND

• Single-Cell Li-Ion to 3.0V or 3.3V SEPIC

Applications (see Figure 6-3)

V_IN

* Includes Exposed Thermal Pad (EP); see Table 3-1.

 2014-2015 Microchip Technology Inc.

DS20005315B-page 1

12 3 4 5 6 7...34

中文翻译

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与MCP1661相关器件

型号	品牌	获取价格	描述	数据表
MCP1661T-E/MNY	MICROCHIP	获取价格	High-Voltage Integrated Switch PWM Boost Regulator with UVLO
MCP1661T-E/OT	MICROCHIP	获取价格	High-Voltage Integrated Switch PWM Boost Regulator with UVLO
MCP1662	MICROCHIP	获取价格	High-Voltage Step-Up LED Driver with UVLO and Open Load Protection
MCP1662T-E/MN	MICROCHIP	获取价格	High-Voltage Step-Up LED Driver with UVLO and Open Load Protection
MCP1662T-E/OT	MICROCHIP	获取价格	High-Voltage Step-Up LED Driver with UVLO and Open Load Protection
MCP1663	MICROCHIP	获取价格	The MCP1663 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up
MCP1664	MICROCHIP	获取价格	The MCP1664 device is a compact, space-efficient, fixed-frequency, non-synchronous step-up
MCP1665	MICROCHIP	获取价格	The MCP1665 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up
MCP-16-I9-LL	YAMAICHI	获取价格	MatchCon
MCP-16-TI9-LL	YAMAICHI	获取价格	MatchCon

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