SD6201 Regulator Datasheet

SD6201 Datasheet, PDF, Equivalent


Part Number

SD6201

Description

Synchronous Boost DC/DC Regulator

Manufacture

SHOUDING

Total Page 10 Pages
Datasheet
Download SD6201 Datasheet


SD6201
SD6201Synchronous Boost DC/DC Regulator
Features
Up to 94% Efficiency
Low voltage start-up 0.9V
Shut-down current: < 1µA
: ~Input voltage 0.9V 4.4V
: ~Output voltage 2.5V 4.3V (Up to 5V with
Schottky)
ΩLow switch on resistance RDS(ON), Internal
switch: 0.35
1.4MHz fixed frequency switching
Automatic PWM/PFM mode switching
Low profile SOT-23-6L package (lead-free
packaging is now available)
Applications
Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
PC cards
Portable media players
Description
The SD6201 is high efficiency synchronous,
PWM step-up DC/DC converters optimized to
provide a high efficient solution to medium
power systems. The devices work under the
input voltage between 0.9V and 4.4V with a
1.4MHz fixed frequency switching. These
features minimize overall solution footprint by
allowing the use of tiny, low profile inductors
and ceramic capacitors. Automatic PWM/PFM
mode switching at light load saves power and
improves efficiency.
The SD6201 is capable of supplying an output
voltage between 2.5V and 4.3V, the internal
synchronous switch is desired to provide high
efficiency without Schottky.
The SD6201 regulators are available in the
industry standard SOT-23-6L power packages
(or upon request).
Order Information
① ②SD6201 -
Symbol
Description
Denotes Output voltage:
A : Adjustable Output
Denotes Package Types:
F: SOT-23-6L
www.shouding.net
1

SD6201
Typical Applications
DC+
0.9V to 4.4V
CIN
20uF
L 2.2uH
1
SW
6 VIN
4
EN
5
VOUT
R1
FB 3
GND
2
R2
VOUT
COUT
20uF
Figure 1: Typical Application Circuit
SD6201
SINGLE + CIN
AA CELL 4.7uF
OFF ON
L 2.2uH
D
1
SW
6 VIN
5
VOUT
4
EN
3
FB
GND
2
M1 SI2305DS
VOUT
R3
510K
R1
1.02M
COUT
4.7uF
R2
604K
R4
Q1
2N3904
510K
Figure 2: Single Cell to 3.3V Synchronous Boost Converter with Load Disconnect in Shutdown.
www.shouding.net
2


Features SD6201Synchronous Boost DC/DC Regulator Features Up to 94% Efficiency :Low v oltage start-up 0.9V Shut-down current: < 1µA : ~Input voltage 0.9V 4.4V : ~Output voltage 2.5V 4.3V (Up to 5V with Schottky) ΩLow switch on resis tance RDS(ON), Internal switch: 0.35 1. 4MHz fixed frequency switching Automati c PWM/PFM mode switching Low profile SO T-23-6L package (lead-free packaging is now available) Applications Digital ca meras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and D SL modems PC cards Portable media playe rs Description The SD6201 is high effi ciency synchronous, PWM step-up DC/DC c onverters optimized to provide a high e fficient solution to medium power syste ms. The devices work under the input vo ltage between 0.9V and 4.4V with a 1.4M Hz fixed frequency switching. These fea tures minimize overall solution footpri nt by allowing the use of tiny, low pro file inductors and ceramic capacitors. Automatic PWM/PFM mode switching at light load saves power and improves eff.
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