L5200-AD-SM1-R UTC [Unisonic Technologies], L5200-AD-SM1-R Datasheet

L5200-AD-SM1-R

Manufacturer Part Number

L5200-AD-SM1-R

Description

LOW NOISE, REGULATED CHARGE PUMP DC/DC CONVERTERS

Manufacturer

UTC [Unisonic Technologies]

Datasheet

1.L5200-AD-SM1-R.pdf (7 pages)

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L5200

LOW NOISE, REGULATED

CHARGE PUMP DC/DC

CONVERTERS

charge pump DC/DC converters and designed to increase efficiency

in white LED application.

input with up to 100mA of output current. Low external parts counts

(one flying capacitor and two small bypass capacitors at V

battery-powered applications.

frequency to zero load and reduces both output and input ripple. The

UTC L5200-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

start-up. High switching frequency enables the use of small ceramic

capacitors. A low-current shutdown feature disconnects the load from

L5200-fixed in SOT-26 and TSOT-26 package.

* Low Noise Constant Frequency Operation

* Output Current: 100mA

* 2MHz Switching Frequency

* 4.5V/5.0V Fixed Output Voltage

* V

* Automatic Soft-Start.

* No Inductors

* Less than 1µA of Shutdown Current

Note: xx :output voltage

www.unisonic.com.tw

OUT

The UTC L5200-xx series are low noise, constant frequency

The

and reduces quiescent current to <1µA.

L5200L-AD-SM1-R

ORDERING INFORMATION

) make the UTC L5200-xx series ideally suited for small,

L5200-AD-SM1-R

L5200-AD-SM1-T

Range:

L5200-xx-AG6-R

L5200-xx-AH6-R

DESCRIPTION

FEATURES

charge-pump

L5200-ADJ

Normal

2.7V ~ V

UNISONIC TECHNOLOGIES CO., LTD

Ordering Number

OUT

architecture

The operating voltage range is 2.7V ~ V

available

(1)Packing Type

(2)Package Type

(3)Output Voltage

(4)Lead Plating

L5200L-AD-SM1-R

L5200L-AD-SM1-T

L5200L-xx-AG6-R

L5200L-xx-AH6-R

Lead Free Plating

maintains

MSOP-8

constant

package

(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

TSOT-26

switching

Package

MSOP-8

SOT-26

during

and

OUT

Tape Reel

*Pb-free plating product number: L5200L

Packing

Tube

MSOP-8

SOT-26

TSOT-26

CMOS IC

QW-R502-029,D

1 of 7

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L5200-AD-SM1-R Summary of contents

Page 1

... V Range: 2. OUT * Automatic Soft-Start Inductors * Less than 1µA of Shutdown Current ORDERING INFORMATION Ordering Number Normal L5200-AD-SM1-R L5200L-AD-SM1-R L5200-AD-SM1-T L5200L-AD-SM1-T L5200-xx-AG6-R L5200L-xx-AG6-R L5200-xx-AH6-R L5200L-xx-AH6-R Note: xx :output voltage L5200L-AD-SM1-R (1)Packing Type (2)Package Type ...

Page 2

... Flying Capacitor Negative Terminal Ground terminal, should be tied to a ground plane for best GND performance Shutdown Mode, Active-Low Input. A low on SHDN L5200 series. SHDN Feedback Input Pin for Adjustable output. An output divider should be FB connected from V OUT Regulated Output Voltage, should be bypassed with a 1µF~4.7µF low ...

Page 3

... L5200 BLOCK DIAGRAM UTC L5200 Adjustable version (MSOP- OUT V IN UTC L5200 fixed version (SOT-26/TSOT-26) V OUT V IN UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw SWITCH SOFT - START CONTROL - ERROR OSCILLATOR AMPLIFIER 1.268V + CHARGE PUMP SGND PGND SWITCH SOFT - START CONTROL OSCILLATOR _ ERROR AMPLIFIER 1 ...

Page 4

... Feedback Voltage (For L5200-ADJ) Output Ripple Voltage(For L5200-fixed) Operating Supply Current Shutdown Current Shutdown Input Current Feedback Input Current (For L5200-ADJ) Open-Loop Output Resistance Switching Frequency Efficiency (For UTC L5200-fixed) Soft Start Time Note: * stand for specifications which apply over the designed operating temperature range. ...

Page 5

... OUT 1 μF 1 μF 2 GND 3 SHDN OFF ON UTC L5200-5.0V White or Blue LED Driver with LED Current Control ( UTC L5200-ADJ 4. Ion 1μF BATTERY ON OFF ( APPLY PWM WAVEFORM FOR ADJUSTABLE BRIGHTNESS CONTROL ) USB Port to Regulated 5V Power Supply ( UTC L5200-5.0V) USB Port 1μF UNISONIC TECHNOLOGIES CO., LTD www ...

Page 6

... L5200 TYPICAL CHARACTERISTICS (L5200-5.0V) Output Voltage vs Supply Voltage 5. 1μF IN OUT FLY I = 20mA OUT 5. 85℃ 5. 25℃ -40℃ a 4.95 4.90 4.85 2.7 3.0 3.3 3.6 Supply Voltage (V) No Load Supply Current vs Supply Voltage 1μF IN OUT FLY SHDN 25℃ 85℃ ...

Page 7

... L5200 TYPICAL CHARACTERISTICS (L5200-5.0V) (cont.) Short Circuit Current vs Supply Voltage 250 200 150 100 3.0 3.3 3.6 2.7 Supply Voltage (V) Output Ripple V (AC OUT COUPLED) 20mV/DIV C = 1μF OUT C = 3.3μF OUT C = 10μF OUT 200ns/DIV 100mA L UTC assumes no responsibility for equipment failures that result from using products at values that ...

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