Datasheet > UP1590QQKF

UP1590QQKF

更新时间： 2024-01-25 02:07:46

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
18页	316K
描述
Dual Synchronous Buck Controller with 5V/3.3V 100mA LDOs for Notebook System Power

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UP1590QQKF 数据手册

uP1590

Dual Synchronous Buck Controller with

5V/3.3V 100mA LDOs for Notebook System Power

Features

General Description

The uP1590 is a dual synchronous buck controller with Wide Input Voltage Range: 5.5V to 26V

5V/3.3V 100mA LDOs for notebook system power supply

Two Synchronous Buck Controllers

solution.

Dual Fixed 5V/3.3V Outputs or Adjustable from

The uP1590 supports high efficiency, fast transient

response and provides a combined POK signal. The

ultrasonic mode maintains the switching frequency above

2V to 5.5V

Selectable DEM and USM in Light Load

(uP1590P)

audio frequency, which eliminates noise in audio

applications. The proprietary RCOT^TMtechnology provides

fast transient response and high noise immunity.

Internal Soft-Start and Soft-Discharge

RCOT^TM(Robust Constant On-Time) Control

Architecture

4500ppm/^OC R_DS(ON)Current Sensing

The uP1590 has internal soft-start to control the inrush

current. Other features include over current protection,

over/under voltage protection, power-up sequencing, POK

output, and thermal shutdown. The uP1590 is available

in the space saving package WQFN3x3-20L, specified

from -40^OC to 85^OC.

100mA 5V/3.3V LDO with Switches

Secondary FB Input Maintains Charge Pump

Voltage (uP1590Q Only)

Power OK Indicator

Applications

OVP/UVP/OCP/OTP

Notebook and Subnotebook System Power

Supplies

WQFN3x3-20L

3-4 Cell Li-Ion Battery-Power Devices

RoHS Compliant and Halogen Free

Dual Output Supplies for DSP, Memory, Logic

and Microprocessor

Ordering Information

Order Number

uP1590PQKF

uP1590QQKF

uP1590RQKF

Package Type

WQFN3x3-20L

Top Marking

uP1590P

uP1590Q

uP1590R

Operation Mode

Selectable by ENM Pin

DEM

Remark

Pin 13: ENM

Pin 13: SECFB

Pin 13: TP

USM

Note:

(1) Please check the sample/production availability with uPI representatives.

(2) uPI products are compatible with the current IPC/JEDEC J-STD-020 requirements. They are halogen-free, RoHS

compliant and 100% matte tin (Sn) plating that are suitable for use in SnPb or Pb-free soldering processes.

uP1590-DS-P0200, Oct. 2013

www.upi-semi.com

12 3 4 5 6 7...18

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