IXD1415
Dual LDO Regulator with ON/OFF Switch
extremely dense power supply circuit with two highspeed voltage regulators in an ultra small USP-6C
package.
The IC consists of two identical circuits, each of
which contains reference voltage source, an error
amplifier, a phase compensation circuit, a driver
transistor, an over-current protection, and a load
capacitor’s discharge switch.
The output voltage for each regulator sets
independently by laser trimming, and it is selectable
in 0.05 V increments within a range from 0.8 to 5.0V.
The enable (EN) function allows set each channel
into standby mode independently, reducing current
consumption to less than 0.1 µA and simultaneously
discharging load capacitor through the internal autodischarge switch located between VOUT and VSS pins,
setting quickly the VOUT pin voltage to the VSS level.
The internal phase compensation allows the IXD1415
operate with a low ESR ceramic output capacitor CL.
The excellent transient response maintains high level
of output stability even during frequent load
fluctuations.
The over current protection circuit (the current limiter
and the fold back circuit) is built-in.
A cross talk between channels, which causes a
problem during load fluctuations, is greatly reduced,
because both regulators are completely isolated.
The IXD1415 is available in SOT-26, USP-6C, and
USPN-6 packages.
FEATURES
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Output Current up to 200 mA (300 mA max)
Dropout Voltage 95 mV @ IOUT = 100 mA, VOUT =
3.0 V
Operating Voltage Range 1.5 V – 6.0 V
Output Voltage Range from 0.8 V to 5.0 V with
0.05 V increments
Output Voltage Accuracy
± 1% @ VOUT > 2.0 V or ±20 mV
(A, B, E, F versions),
± 2% @ VOUT ≥ 1.5 V, or ±30 mV
(C, D, G, H versions)
Low Power Consumption at 28 µA per channel
Standby Current less than 0.1 µA typical
PSRR at 65 dB for f = 1 kHz
ON/OFF switch for each channel
Current Limit, and Short Circuit Protection
Load Capacitor Auto Discharge
Low ESR Ceramic Capacitor compatible
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Operating Ambient Temperature - 40 + 85 C
Packages : SOT-26, USP-6C, and USPN-6
EU RoHS Compliant, Pb Free
APPLICATIONS
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Mobile phones
Cameras, VCRs
Various portable equipment
DESCRIPTION
The IXD1415 is a highly accurate, CMOS dual output
LDO voltage regulator with low output noise, high
ripple rejection ratio, and low dropout. It allows create
TYPICAL APPLICATION CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTIC
Cross Talk
IXD1415 (VOUT1 = 3.3 V, VOUT2 = 2.5 V
VIN = 4.2 V, Ta = 25 0C, tR = tF = 5 µs, CIN = CL1 = CL2 = 1 µF, IOUT2 = 0.1 ↔ 50 mA
© 2013 IXYS Corp.
Characteristics subject to change without notice
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Doc. No. IXD1415_DS, Rev. N0
