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ZXLD1100, ZXLD1100H6, ZXLD1101

Table of contents:
Info of ZXLD1100
Info of ZXLD1100H6
Info of ZXLD1101

ZXLD1100, ZXLD1100H6, ZXLD1101 Selling Leads, Datasheet

MFG:ZETEX Package Cooled:SC70-6 D/C:07+

ZXLD1100, ZXLD1100H6, ZXLD1101 Datasheet download

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Part Number: ZXLD1100

MFG: ZETEX

Package Cooled: SC70-6

D/C: 07+

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ZXLD1100 General Description

The ZXLD1100 is a PFM inductive boost converter designed for driving 2, 3 or 4 series connected white LEDs from a Li-Ion cell and up to 8 LEDs from a 5V supply. The device operates from an input supply of between 2.5V and 5.5V and provides an adjustable output current of up to 50mA.

The ZXLD1100 includes the output switch and peak current sense resistor, and can operate with a maximum output voltage of 28V.

Quiescent current is typically 60A and a shutdown function is provided to reduce this current to less than 500nA in the 'off' state.

Output current can be adjusted by applying a PWM control signal to the 'Enable' pin. Depending upon the control frequency, this will provide either a continuous or a 'chopped' output current. The PWM filter components are contained within the chip.

The ZXLD1100 contains an internal avalanche diode to protect the output switch. This allows the device to operate indefinitely if the load is open circuit. Input supply current during this condition is less than 1mA.

The device is assembled in a low profile SC70-6 pin package with industry standard pinout.

ZXLD1100 Maximum Ratings

Part Number	ZXLD1100
Min and Max Input Voltage (V)	2.5 ~ 5.5
Output Voltage (V)	ADJ 28V Max
Frequency (kHz) typ	1000
Efficiency (%)	80
Quiescent Current (mA) typ
Standby Quiescent Current (uA) typ	60

ZXLD1100 Features

• Low profile SC70 6 pin package
• Internal PWM filter for flicker free output
• High efficiency (80% typ)
• Wide input voltage range: 2.5V to 5.5V
• Up to 50mA output current
• Low quiescent current: (60A typ)
• 500nA maximum shutdown current
• Up to 1MHz switching frequency
• Low external component count
• Inherently matched LED currents

ZXLD1100 Typical Application

• Mobile phones
• Digital cameras
• PDAs
• LCD modules
• Portable internet appliances
• Palmtop computers

ZXLD1101 General Description

The ZXLD1101 is a PFM inductive boost converter designed for driving 2, 3 or 4 series connected white LEDs from a Li-Ion cell and up to 8 LEDs from a 5V supply. The device operates from an input supply of between 2.5V and 5.5V and provides an adjustable current of up to 50mA.

The ZXLD1101 includes the output switch and peak current sense resistor, and can operate with a maximum output voltage of 28V.

Quiescent current is typically 60A and a shutdown function is provided to reduce this current to less than 500nA in the 'off' state.

Output current can be adjusted by applying a PWM control signal to the 'Enable' pin. Depending upon the control frequency, this will provide either a continuous or a 'chopped' output current. The PWM filter components are contained within the chip.

The device is assembled in the TSOT23-5 pin package with 1mm maximum height profile.

ZXLD1101 Maximum Ratings

Part Number	ZXLD1101
Min and Max Input Voltage (V)	2.5 ~ 5.5
Output Voltage (V)	ADJ 28V Max
Frequency (kHz) typ	1000
Efficiency (%)	80
Quiescent Current (mA) typ	-
Standby Quiescent Current (uA) typ	60

ZXLD1101 Features

• 1mm height profile TSOT23-5 pin package
• Internal PWM filter for flicker free output
• High efficiency (80% typ)
• Wide input voltage range: 2.5V to 5.5V
• Up to 50mA output current
• Low quiescent current: (60A typ)
• 500nA maximum shutdown current
• Up to 1MHz switching frequency
• Low external component count
• Inherently matched LED currents

ZXLD1101 Typical Application

• Mobile phones
• Digital cameras
• PDAs
• LCD modules
• Portable internet appliances
• Palmtop computers

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