SP6122,SP6122_04,SP6122ACU,SP6122ACU/TR,SP6122ACU-15,SP6122ACU-15/TR

Part No.:
SP6122,SP6122_04,SP6122ACU,SP6122ACU/TR,SP6122ACU-15,SP6122ACU-15/TR
Download:
Download
Description:
Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
File Size:
162 K
Page:
19 Pages
Logo:
Maker:
SIPEX [ SIPEX CORPORATION ]
PCB Prototype

July 19, 2018:

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PCB Datasheet:1PCB Datasheet:1
®
SP6122
Low Voltage, Micro 8, PFET, Buck Controller
Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
Optimized for Single Supply, 3V-5.5V Applications
High Efficiency, Greater than 90% Possible
8
PDRV
VCC
1
20ns/1nF PFET Output Driver
SP6122
FFLAG
2
7
GND
8 Pin MSOP
Fast Transient Response
VOUT
3
6
ISET
Open Drain Fault Output Pin
ENABLE
4
5
ISENSE
Internal Soft Start Circuit
Accurate 1.5% Reference
Programmable Output Voltage or Fixed 1.5V Output
Now Available in Lead Free Packaging
Loss-less Adjustable Current Limit with High side
R
DS(ON)
Sensing
Hiccup or Lock-up Fault Modes
Low 5µA Sleep Mode Quiescent Current
APPLICATIONS
Low 300µA Protected Mode Quiescent Current
Video Cards
Ultra Low, 150µA Unprotected Mode Quiescent
High Power Portable
Current
Microcontrollers
High Light Load Efficiency
I/O & Logic
Offered in Tiny 8 pin MSOP Package
Industrial Control
Distributed Power
Low Voltage Power
DESCRIPTION
The
SP6122
is a PWM/PFM minimum on-time controller designed to work from a single 3V-
5.5V input supply. It is engineered specifically for size and minimum component count,
simplifying the transition from a linear regulator to a switcher solution. However, unlike other
“micro” parts, the
SP6122
has an array of value added features such as optional hiccup
mode, over current protection, TTL enable, “jitter and frequency stabilization” and a fault flag
pull-down pin. Combined with reference and driver specifications usually found on more
expensive integrated circuits, the
SP6122
delivers great performance and value in an 8 pin
MSOP package.
TYPICAL APPLICATION CIRCUIT
R1
C1
4.7µF
V
CC
V
IN
C2
100µF
PDRV
®
3.0V to 7.0V
5Ω
R
SET
1k
Q1
PDS6375
FFLAG
FFLAG
V
OUT
GND
SP6122
I
SET
I
SENSE
ENABLE
ENABLE
L1
2.2µH
STPS2L25U
DFLY
1A to 5A
V
OUT
C
OUT
470µF
Date: 10/02/04
SP6122 Low Voltage, Micro 8, PFET, Buck Controller
© Copyright 2004 Sipex Corporation
1