产品中心

联系方式

深圳市嘉泰姆实业发展有限公司
地址：深圳市南山区高新中二道33号

电话：0755-26580208

手机：13823140578

E-mail：oumao18@jtm-ic.com

网站：www.jtm-ic.com

官方微信

关注:电子行业精彩资讯，关注嘉泰姆资讯官方微信，精华内容抢鲜读，关注方法：添加好友→搜索“嘉泰姆电子元件”→关注或微信“扫一扫”二维码官方微信(图片点击可放大)

当前位置：首页 > 产品中心> DC~DC升降压/LDO/稳压器/电荷泵/限流器
DC~DC升降压/LDO/稳压器/电荷泵/限流器

APW7199 High-Performance Step-Down PWM Controller with PFM,The PWM controller operates fixed 300kHz pseudo-con- stant frequency PWM with an adaptive constant-on-time control.

Features

Operates from An Input Battery Voltage Range of

+3V to +25V

±0.6% 0.5V Reference

- Over Line, Load Regulation, and Operating Temp.

Drive Dual Low Cost N-Channel MOSFETs

- Adaptive Shoot-Through Protection

Power-On-Reset Monitoring on VCC Pin

PFM Mode for Increasing Light Load Efficiency

Constant-On-Time Control Scheme

- Switching Frequency Compensation for PWM

Operation

300kHz Constant Switching Frequency

Integrated MOSFET Drivers and Bootstrap Diode

Internal Soft-Start and Soft-Stop

Power Good Monitoring

70% Under-Voltage Protection

125% Over-Voltage Protection

- Using Low-Side MOSFET’s RDS(ON)

Over-Temperature Protection

TDFN-10 3mmx3mm Package

Lead Free and Green Devices Available

(RoHS Compliant)

General Description

The APW7199 is a single-phase, constant-on-time, and

synchronous PWM controller, which drives N-channel

MOSFETs. An internal 0.5V temperature-compensated

reference voltage with high accuracy is designed to meet

the requirement of low output voltage applications. The

APW7199 steps down high voltage to generate low-volt-

age chipset or RAM supplies in notebook computers.

The PWM controller operates fixed 300kHz pseudo-con-

stant frequency PWM with an adaptive constant-on-time

control. The device provides excellent transient response

and accurate DC voltage output in either PFM or PWM

Mode. In Pulse Frequency Mode (PFM), the APW7199 pro-

vides very high efficiency over light to heavy loads with

loading-modulated switching frequencies. The device

works in ultrasonic mode with PFM at no load. The unique

ultrasonic mode maintains the switching frequency above

20kHz, which eliminates noise in audio applications.

The APW7199 is equipped with accurate over-current,

output under-voltage, and output over-voltage protections.

A Power-On-Reset function monitors the voltage on VCC

to prevent wrong operation during power-on. The

APW7199 has a 1.5ms digital soft-start to ramp up the

output voltage to reduce the start-up current. A soft-stop

function actively discharges the output capacitors with

controlled reverse inductor current.

The APW7199 is available in TDFN3x3-10 package.

Part_No	Package & Pins	Topology	Architecture	Phase	No. of PWM Outputs	Output Current (max)(A)	Input Voltage (V)		Reference Voltage(V)	Bias Voltage (typ) (V)	Quiescent Current (typ)(uA)
Part_No	Package & Pins	Topology	Architecture	Phase	No. of PWM Outputs	Output Current (max)(A)	min	max	Reference Voltage(V)	Bias Voltage (typ) (V)	Quiescent Current (typ)(uA)
APW7068	SOP-14 QSOP-16 QFN4x4-16	Buck	VM	1	1	30	2.9	13.2	0.9	12	8000
APW7065	SOP-8	Buck	VM	1	1	20	2.9	13.2	0.8	12	5000
APW7065C	SOP-8	Buck	VM	1	1	20	2.9	13.2	0.8	12	5000
APW7098	QFN4x4-24	Multiphase	VM	2	1	60	3.1	13.2	0.6	12	5000
APW7120	SOP-8	Buck	VM	1	1	20	2.2	13.2	0.8	5 / 12	2100
APW7120A	SOP-8	Buck	VM	1	1	20	2.2	13.2	0.8	5 / 12	2100
APW7037/A/B	SOP-8 TSSOP-8	Buck	VM	1	1	5	5	13.2	1.25 / 0.8	5 / 12	3000
APW7057	SOP-8	Buck	VM	1	1	10	3.3	5.5	0.8	5	2100
APW7062B	SOP-14	Buck	VM	1	1	10	5	13.2	0.8	12	2000
APW7066	TSSOP-24 QFN5x5-32	Buck	VM	1	2	20	5	13.2	0.6	5 / 12	4000
APW7067N	SOP-14 QSOP-16 QFN-16	Buck	VM	1	1	30	2.9	13.2	0.9	12	4000
APW7073	SOP-14	Buck	VM	1	1	30	2.2	13.2	0.6	12	5000
APW7073A	SOP-14	Buck	VM	1	1	30	2.2	13.2	0.6	12	5000
APW7074	SOP-14	Buck	VM	1	1	25	2.2	13.2	0.8	12	5000
APW7095/A	LQFP7x7-48 TQFN7x7-48	Buck Boost Flyback	VM	1	6	0.015	1.4	6.5	-	5	1800
APW7116	TSSOP-24P	Buck	VM	1	2	20	2.97	5.5	0.8	5 / 12	5000
APW7063	SOP-14	Buck	VM	1	1	10	5	13.2	0.8	12	3000
APW7064	SOP-8-P DIP-8	Buck	VM	1	1	30	2.9	13.2	1.2	12	3000
APW7108	SSOP-28 QFN4x4-24	Buck	VM	1	2	20	5	24	0.9	5	1200
APW7158	SOP-20	Buck	VM	1	2	20	2.2	13.2	0.6	5 / 12	4000
APW7181	SOP-8 DFN3x3-10		VM	1	2	-	-	-	-	5 / 12	550
APW38HC/42/3/4/5A	DIP-8 SOP-8	Buck Boost Flyback Forward	VM	1	1	1	1.2	9	24	5	9 ~ 24
APW7138	SSOP-16 QFN4x4-16 TQFN3x3-16	Buck	VM	1	1	25	3	25	0.6	5	1700
APW7199	TDFN3x3-10	Buck	COT	1	1	25	3	25	0.5	5	350
APW8700	QFN4x4-24	Buck	CM	2	1	40	4.5	13.2	0.6	5 / 12	4000
APW8720B	SOP8-P TDFN3x3-10	Buck	VM	1	1	20	3	13.2	0.8	5 / 12	2500
APW8722A/B/C/D	SOP8-P	Buck	VM	1	1	25	3	13.2	0.6 /0.8	5 / 12	1200
APW8723	TDFN3x3-10	Buck	VM	1	1	25	4	13.2	0.8	5 / 12	2000
APW8724	TDFN3x3-10	Buck	COT	1	1	25	4.5	25	0.6	5 / 12	80
APW8725/A	SOP-8P	Buck	VM	1	1	25	4.5	13.2	0.8	5 / 12	16000
APW8726	TQFN3x3-10	Buck	VM	1	1	25	4.5	13.2	0.6	5 / 12	2500
APW8727/L	TDFN3x3-10	Buck	COT	1	1	30	3	25	0.8	5 / 12	2000
APW8728	TQFN3x3-16	Buck	COT	1	1	30	1.8	28	0.6	5	600
APW8732	QFN4x4-24	Buck	VM	2	1	50	4.5	13.2	0.6	5 / 12	5000
APW8811	TQFN4x4-24	Buck	COT	1	2	15	6	25	2	N	550
APW8812	TQFN4x4-24	Buck	COT	1	2	15	6	25	2	N	550
APW8813/A	TQFN4x4-24 TQFN3x3-20	Buck	COT	1	2	20	3	28	0.75	5	800
APW8814	TQFN3x3-16	Buck	COT	1	1	20	1.8	28	0.75	5	400
APW8815	QFN3.5x3.5-14 TQFN3x3-16	Buck	COT	1	1	20	1.8	28	0.75	5	400
APW8816	TQFN3x3-16	Buck	COT	1	2	20	1.8	28	0.75	5	400
APW8819	QFN3x3-20 TQFN3x3-16	Buck	COT	1	2	20	3	28	1.8 /1.5 /0.5	5	740
APW8820	TQFN4x4-24 QFN3x3-20	Buck	CM	1	2	15	5	28	0.5	N	3000
APW8821	TDFN3x3-10	Buck	COT	1	1	20	1.8	28	0.5	5	250
APW8822/C	TQFN3x3-20	Buck	COT	1	2	15	6	25	2	N	550
APW8823A/B	TQFN3x3-20	Buck	COT	1	2	15	5.5	25	0.6	N	50
APW8868	TQFN3x3-20	Buck	COT	1	2	20	3	28	0.75	5	180
APW7088	QFN4x4-24	Multiphase	VM	2	1	60	3.1	13.2	0.85	12	5000
APW7165A/B/C	SOP-8P	Buck	VM	1	1	20	2.9	13.2	0.8	12	16000
APW7159A	SOP-20	Buck	VM	2	2	30	10	13.2	1	12	5000
APW8828	TDFN3x3-10	Buck	COT	1	1	25	1.8	28	0.7	5	250

QQ截图20150629155950.jpg

本文链接:http://www.jtm-ic.com/aspcms/news/2015-6-29/1383.html

点击次数：713 更新时间：2015/6/29 15:51:35 【打印此页】【关闭】

上一条：SF5873 is a multi mode controller. When full loadings, the IC works in CCM mode or QR mode based on the AC line input. When the loading goes low, the IC enters into "Digital Frequency Foldback" mode t 下一条：APW8700 Dual-Phase Synchronous-Rectifier Buck Controller,The APW8700, two-phase PWM control IC, provides a precision voltage regulation system for advanced graphic card and motherboard application