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RT8012AGQW Datasheet

  • RT8012AGQW

  • Dual 1A/1.5A-1.2MHz Synchronous Step-Down Converters

  • 14頁

  • RICHTEK   RICHTEK

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Preliminary
RT8012A
Dual 1A/1.5A-1.2MHz Synchronous Step-Down Converters
General Description
The RT8012A is a dual PWM, current mode, stepdown
converter. Its input voltage range is from 2.6V to 5.5V and
has a constant 1.2MHz switching frequency, allowing the
use of tiny, low cost capacitors and inductors 2mm or
less in height. Each output voltage is adjustable from 0.8V
to 5V. Internal power switches with low on-resistance of
the dual step-down regulators increase efficiency and
eliminate the need for external Schottky diodes. The
RT8012A can run at 100% duty cycle for low dropout
operation that extends battery life in portable systems.
With independent Enable and Power-Good pins, it is easy
to control the power up sequence of the two converters,
which is important in some applications.
Features
High Efficiency : Up to 95%
1.2MHZ Constant Switching Frequency
1A and 1.5A Load Current on Each Channel
Respectively
Low R
DS(ON)
Internal Switches
No Schottky Diode Required
0.8V Reference Allows Low Output Voltage
Low Dropout Operation : 100% Duty Cycle
Internally Compensated
< 2渭A Shutdown Current
渭
Power Good Output Voltage Monitor
Internal Soft-Start
Easy Power Sequence Control
Over temperature Protection
Short Circuit Protection
Thermally Enhanced 16-Lead WQFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT8012A
Package Type
QW : WQFN-16L 4x4 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Comme-
rcial Standard)
Applications
Portable Instruments
Microprocessors and DSP Core Supplies
Cellular Phones
Wireless and DSL Modems
PC Cards
Digital Cameras
Note :
RichTek Pb-free and Green products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
100% matte tin (Sn) plating.
Pin Configurations
(TOP VIEW)
GND
PGOOD1
12
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
FB2
EN2
Marking Information
PGOOD2
PVDD2
PVDD2
PGND
1
2
3
4
16 15 14 13
FB1
PGND
11
10
EN1
VDD
9
PVDD1
5
6
7
8
WQFN-16L 4x4
DS8012A-01 March 2007
LX1
PGND
LX2
LX2
www.richtek.com
1

RT8012AGQW 產(chǎn)品屬性

  • RT8012A

  • 2,500

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 降壓（降壓）

  • 可調(diào)式

  • 2

  • 0.8 V ~ 5 V

  • 2.6 V ~ 5.5 V

  • 電流模式

  • 1.2MHz

  • 1A，1.5A

  • 是

  • -40°C ~ 85°C

  • 表面貼裝

  • 16-WQFN 裸露焊盤

  • 帶卷 (TR)

  • 16-WQFN（4x4）

  • 1028-1028-2RT8012AGQW-ND

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