|Category||Power Management => Regulators => Linear Regulators => LDO (Low Drop Out)|
|Description||Dual Ultra Low-noise Low Dropout Tvoltage Regulator With 1v On/off Control|
|Datasheet||Download MC33762 datasheet
|Cross ref.||Similar parts: MIC5250|
|MC33762 Dual Ultra Low-Noise Low Dropout Voltage Regulator with 1.0 V ON/OFF Control
The is a dual Low DropOut (LDO) regulator featuring excellent noise performances. Thanks to its innovative design, the circuit reaches an impressive 40 µVRMS noise level without an external bypass capacitor. Housed in a small µ8 package, it represents the ideal designer's choice when space and noise are at premium. The absence of external bandgap capacitor accelerates the response time to a wakeup signal and keeps it within 40 µs, making the as a natural candidate for portable applications. The MC33762 also hosts a novel architecture which prevents excessive undershoots in the presence of fast transient bursts, as in any bursting systems. Finally, with a static line regulation better than 75 dB, it naturally shields the downstream electronics from choppy lines.
Nominal Output Current 80 mA with 100 mA Peak Capability UltraLow Noise: 150 nV/Hz @ 100 Hz, 40 µVRMS
100 Hz100 kHz Typical, Iout = 60 mA, 1.0 µF Fast Response Time from OFF to ON: 40 µs Typical Ready for 1.0 V Platforms: ON with 900 mV High Level Typical Dropout @ 30 mA, 80 mA Ripple Rejection: @ 1.0 kHz 1.5% Output Precision @ 25°C Thermal Shutdown Vout Available 2.8 V, and 3.0 V Separate Dice for Each Regulator Provides Maximum Isolation Between Regulators Operating Range from to +85°C
See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet.Applications
Noise Sensitive Circuits: VCOs RF Stages, etc. Bursting Systems (TDMA Phones) All Battery Operated Devices8 *Current Limit *Antisaturation Protection *Load Transient Improvement
6 *Current Limit *Antisaturation Protection *Load Transient Improvement
Pin Name Vcc1 Vout1 Function Ground of the 1st LDO Enables the 1st LDO Ground of the 2nd LDO Enables the 2nd LDO 2nd LDO Vcc pin Shuts or wakesup the IC 1st LDO Vcc pin Delivers the output voltage 900 mV level on this pin is sufficient to start this LDO. 150 mV shuts it down. This pin brings the power to the 1st LDO and requires adequate decoupling. This pin requires 1.0 µF output capacitor to be stable. This pin brings the power to the 1st LDO and requires adequate decoupling. This pin requires 1.0 µF output capacitor to be stable. 900 mV level on this pin is sufficient to start this LDO. 150 mV shuts it down. Description
Value Rating Power Supply Voltage ESD Capability, HBM Model ESD Capability, Machine Model Maximum Power Dissipation NW Suffix, Plastic Package Thermal Resistance JunctiontoAir Operating Ambient Temperature Maximum Junction Temperature (Note 1.) Maximum Operating Junction Temperature (Note 2.) Storage Temperature Range 1. Internally limited by shutdown. 2. Specifications are guaranteed below this value. Pin # 1 All Pins All Pins Symbol Vin PD RqJA TA TJmax TJ Tstg Min Max 1.0 200 Internally Limited to +150 Unit V W °C/W °C
(For typical values = 25°C, for min/max values to +85°C, max = 125°C unless otherwise noted) Characteristics Pin # Symbol Min Typ Max Unit
Input Voltage Range ON/OFF Input Resistance (all versions) ON/OFF Control Voltages (Note 3.) Logic Zero, OFF State, 50 mA Logic One, ON State, mA 24 VON/OFF RON/OFF VON/OFF Vin kW mV
Current Consumption in OFF State (all versions) OFF Mode Current: Vin = Vout = 0, VOFF 150 mV Current Consumption in ON State (all versions) ON Mode Current: Vin = Vout = 0, VON 3.5 V Current Consumption in ON State (all versions), ON Mode Saturation Current: Vin = Vout V, No Output Load Current Limit Vin = Voutnom 1.0 V, Output is brought to Voutnom 0.3 V (all versions) IQOFF IQON IQSAT IMAX mA
Line Regulation (all versions) Vout V < Vin 12 V, Iout 80 mA Load Regulation (all versions) Vin = Vout 1.0 V, Cout = 1.0 mF, Iout 80 mA Dropout Voltage (all versions) (Note 3.) Iout 30 mA Iout 60 mA Iout mA 3. Voltage slope should be greater than 2.0 mV/ms 57 Regline Regload mV 57 VinVout
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