L5201_15 Datasheet, PDF (1/7 Pages) Unisonic Technologies – CMOS IC

UNISONIC TECHNOLOGIES CO., LTD
L5201
CMOS IC

LOW NOISE, REGULATED
CHARGE PUMP DC/DC
CONVERTERS
DESCRIPTION
The UTC L5201-xx series are low noise, constant frequency
charge pump DC/DC converters and designed to increase efficiency
in white LED application. The operating voltage range is 2.7V ~ V_OUT
input with up to 100mA of output current. Low external parts counts
(one flying capacitor and two small bypass capacitors at V_IN and
V_OUT) make the UTC L5201-xx series ideally suited for small,
battery-powered applications.
A
charge-pump architecture maintains constant switching
frequency to zero load and reduces both output and input ripple. The
UTC L5201-xx series have thermal shutdown capability to escape
the device damaged from a continuous short-circuit. With built-in
soft-start circuitry to prevents excessive current flow at V_IN during
start-up. High switching frequency enables the use of small ceramic
capacitors. A low-current shutdown feature disconnects the load from
V_IN and reduces quiescent current to <1µA.
The L5201-ADJ is available in MSOP-8 package and
L5201-fixed in SOT-26 and TSOT-26 package.
FEATURES
* Low Noise Constant Frequency Operation
* Output Current:
90mA@3.0V<V_IN<5V
100mA@3.0V<V_IN<4.5V
* 1MHz Switching Frequency
* 4.5V/5.0V Fixed Output Voltage
* V_IN Range: 2.7V ~ V_OUT
* Automatic Soft-Start.
* No Inductors
* Less than 1µA of Shutdown Current
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
L5201-AD-SM1-R
L5201L-AD-SM1-R
L5201-AD-SM1-T
L5201L-AD-SM1-T
L5201-xx-AG6-R
L5201L-xx-AG6-R
L5201-xx-AH6-R
L5201L-xx-AH6-R
Note: xx :output voltage
Package
MSOP-8
MSOP-8
SOT-26
TSOT-26
MSOP -8
4
5
6
3
2
1
SOT-26
4
5
6
123
TSOT-26
*Pb-free plating product number: L5201L
Packing
Tape Reel
Tube
Tape Reel
Tape Reel
L5201L-AD-SM1-R
(1)Packing Type
(2)Package Type
(3)Output Voltage
(4)Lead Plating
(1) R: Tape Reel, T: Tube
(2) SM1: MSOP-8, AG6: SOT-26, AH6: TSOT-26
(3) AD: ADJ, xx: 45:4.5V, 50:5.0V
(4) L: Lead Free Plating, Blank: Pb/Sn
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