PMIC. APW7279 Datasheet

APW7279 PMIC. Datasheet pdf. Equivalent

Part APW7279
Description PMIC
Feature APW7279 PMIC for LED BL + LCD Bias Power Features General Description • 2.7V to 5.5V Input Suppl.
Manufacture ANPEC
Datasheet
Download APW7279 Datasheet




APW7279
APW7279
PMIC for LED BL + LCD Bias Power
Features
General Description
2.7V to 5.5V Input Supply Range
The APW7279 integrates with two high-performance step-
Current Mode Step-up Regulator (LCD bias)
up converter and two charge pump controllers for TFT-
- 1MHz Fixed Operating Frequency
LCD and Backlight applications. Both the two step-up
- Fast Transient Response
regulators are a current-mode, fixed-frequency PWM
- 18V/700mA ,1.5Internal N-MOS
switching regulator. The 1.0MHz switching frequency al-
Positive & Negative Charge Pump Driver for VGH, lows the usage of low-profile inductors and ceramic ca-
V
GL
Current Mode Step-up Regulator (LED BL)
pacitors to minimize the thickness of LCD panel designs.
The charge pump controllers provide regulated the gate-
- 1MHz Fixed Operating Frequency
driver of TFT-LCD VGH and VGL supplies. The APW7279 is
- 0.2V Feedback Voltage
available in a tiny 3mm x 3mm 20-pin TQFN package
- 18V/2A, 0.3internal N-MOS
(TQFN3x3-20).
Control Output for External P-MOS to Support
Completely Disconnecting the Battery
Adjustable Power Sequencing by External
Capacitor
Internal Soft-Start
Multiple Overload Protection
Thermal Shutdown
Available in Small Package:TQFN3x3-20
Applications
Tablet PC
Simplified Application Circuit
Step-up Step-up
Converter Converter
For LCD For BL
Positive
Charge
Pump
Negative
Charge
Pump
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. P.2 - Mar., 2015
1
www.anpec.com.tw



APW7279
APW7279
Ordering and Marking Information
Assembly Material
G : Halogen and Lead Free Device
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Pin Configuration
APW7279
VS
REF
SUP
DRVP
DRVN
1
2
3
4
5
(Exposed Pad)
PGND
15 FB_LCD
14 BSW
13 LX_LCD
12 PGND
11 LX_LED
TQFN3x3-20
Top View
= Thermal Pad (connected to GND plane
for better heat dissipation)
Copyright © ANPEC Electronics Corp.
Rev. P.2 - Mar., 2015
2
www.anpec.com.tw







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