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參數(shù)資料
| 型號： | SA57254-30GW |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Ceramic Multilayer Capacitor; Capacitance:47pF; Capacitance Tolerance:+/- 5 %; Working Voltage, DC:100V; Dielectric Characteristic:C0G/NP0; Package/Case:0603; Series:VJ; Leaded Process Compatible:Yes; Mounting Type:Surface Mount |
| 中文描述： | 0.3 A SWITCHING REGULATOR, 57.5 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | 1.50 MM, PLASTIC, SOT-25, SOT-23-5, SO-5 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 267K |
| 代理商： | SA57254-30GW |
Philips Semiconductors
Product data
SA57254-XX
CMOS switching regulator (PWM controlled)
2
2003 Nov 11
GENERAL DESCRIPTION
The SA57254-XX is a fully integrated DC/DC converter circuit.
Efficient, compact power conversion is achieved with a pulse width
modulation (PWM) controlled switching regulator circuit designed
using CMOS processing. Low ripple and high efficiency of typically
83% are achieved through PWM control. The regulator has a high
precision output with
±
2.4% accuracy. Few external components are
required.
The SA57254-XX has a built-in soft-start circuit which reduces
inrush current and voltage overshoot during start-up. A low
resistance CMOS power FET, which has low leakage current and
low parasitic capacitance, is on-chip.
FEATURES
Operates from 0.7 to 9 V
DC
Ultra low operating supply current—typically 17
μ
A
Built-in power FET
High efficiency—typically 83%
High precision output—typically
±
2.4%
Operating temperature range of –40 to +85
°
C
Available output voltages: 2.0, 2.5, 2.8, 3.0, 3.3, 3.6, 5.0 V
DC
Available in a 5-lead small outline surface mount package
(SOP003)
APPLICATIONS
Mobile and portable phones
Instrumentation and industrial products
Other portable, battery-operated equipment
SIMPLIFIED SYSTEM DIAGRAM
SL01501
1
V
REF
5
4
V
OUT
V
BATT
SA57254-XX
GND
SW
FB
PWM CONTROL
SOFT START
2
R
R
SA57254-XX as a boost (step-up) converter.
V
DD
Figure 1. Simplified system diagram.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SA57254-33GW | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| SA57254-36GW | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| SA57254-50GW | Ceramic Multilayer Capacitor; Capacitance:4.7pF; Capacitance Tolerance:+/- 0.25 pF; Working Voltage, DC:50V; Dielectric Characteristic:C0G/NP0; Package/Case:0603; Series:VJ; Leaded Process Compatible:Yes; Mounting Type:Surface Mount |
| SA57254-20GW | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| SA57254-25GW | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA57254-33GW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS switching regulator (PWM controlled) |
| SA57254-36GW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS switching regulator (PWM controlled) |
| SA57254-50GW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS switching regulator (PWM controlled) |
| SA57254-XX | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS switching regulator (PWM controlled) |
| SA57254-XXGW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS switching regulator (PWM controlled) |
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