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PULAN

PS3120A Datasheet Preview

PS3120A Datasheet

Low noise switched capacitor voltage doubler

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PULAN TECHNOLOGY CO., LIMITED
Description
The PS3120A is a low noise switched capacitor
voltage doubler. It produces a regulated output
voltage from a 2.7V to 4.5V input. Low external
parts count (one flying capacitor and two small
bypass capacitors at VIN and VOUT) make the
PS3120A ideally suited for small,
battery-powered applications.
The PS3120A have thermal shutdown
capability and can survive a continuous short
circuit from VOUT to GND. A low current
shutdown feature disconnects the load from VIN
and reduces quiescent current to <1μA.
The PS3120A is available in the industry
standard SOT-23-6L power packages.
Typical Application
PS3120A
Features
Fixed 4.94V±3% Output
VIN Range: 2.7V to 4.5V
Output Current: Up to 110mA (VIN3V)
Up to 230mA (VIN3.6V)
Low Noise Constant Frequency (360kHz)
Operation
Shutdown Current <1μA
No Inductors
Available in Low Profile 6-Lead SOT23
Package
Applications
White LED Backlighting
Li-Ion Battery Backup Supplies
Smart Card Readers
PCMCIA Local 5V Supplies
C FLY 10µF
DC+
2.7V ~ 4.5V
CIN
10µF
4
C-
5 VIN
6
C+
1
VOUT
PS3120A
3 EN
ON OFF
GND
2
VOUT
4.94V
COUT
10µF
PS3120A-GV2.3
Figure 1: Regulated 4.94V Output
PULAN TECHNOLOGY
1




PULAN

PS3120A Datasheet Preview

PS3120A Datasheet

Low noise switched capacitor voltage doubler

No Preview Available !

PULAN TECHNOLOGY CO., LIMITED
PS3120A
Pin Assignment and Description
654
123
SOT-23-6L
PIN NAME
DESCRIPTION
1 VOUT
Output
2 GND
Ground
3 EN ON/OFF Control (High Enable)
4 C- Flying Capacitor Negative Terminal.
5 VIN
Input
6 C+ Flying Capacitor Positive Terminal.
Absolute Maximum Ratings (Note 1)
VIN ……………………………….…………………………….…….….…..….………-0.3V 6V
VOUT………………………………………………………………………………….….-0.3V 5.5V
VEN……………………………………………………...…………………….…...……-0.3V 6V
IOUT (Note 2) …………………….................................………………………...................... 300mA
Operating Temperature Range (Note 3)…………………………………………...……-40+85
Lead Temperature (Soldering 10, sec.) ……………………………………..………………+265
Storage Temperature Range ………………………………………………..…..-65+125
Note 1: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability.
Note 2: Based on long term current density limitations.
Note 3: The PS3120A are guaranteed to meet performance specifications from 0 C to 70 C. Specifications over the
–40 C to 85 C operating temperature range are assured by design, characterization and correlation with statistical
process controls.
PS3120A-GV2.3
PULAN TECHNOLOGY
2


Part Number PS3120A
Description Low noise switched capacitor voltage doubler
Maker PULAN
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PS3120A Datasheet PDF






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