NCP590

Features:

Dual Outputs, Each Supporting up to 300 mA Current
Available in Output Combinations Ranging from 0.8 V to 5.0 V
2.1 V to 5.5 V V_CC Operating Supply Range
Ultra-High Accuracy (0.9% max at 100 mA load & 25°C)
Each Output has a Dedicated Enable Control Pin
Enable Threshold Supports sub-1 V Systems
Very Low Drop Out Voltage (50 mV typ @ 100 mA load)
Low Noise (~20 Vrms) without Bypass Capacitor
Ultra Low Shutdown Current (0.2 A)
Low Quiescent and Ground Current (80 - 100 A typ.)
Thermal Shutdown and Current Limit Protection
Active Output Discharge when Disabled
No Minimum Output Current Required for Stability
Requires C_out of only 1.0 F (any ESR) for Stability
Stable with Any Type of Capacitor (including MLCC) and Zero Load
Input Under Voltage Lock Out (UVLO)
Internally Compensated Regulator for Quick Transient Response
Space-Ef ficient 2x2 DFN8 Package
This is a Pb-Free Device


Application

Cellular Phones
Cameras
MP3/CD Players, PDA's, Camcorders
DSP Supplies
Portable Info-tronics
PCMCIA Cards
Networking Systems, DSL/Cable Modems


Pinout




Specifications

Pin Symbol, Parameter		Symbol	Condition	Min	Max	Unit
VIN , Input to regulator	Voltage	VIN		-0.3	6.0	V
	Current	IIN		-	Internally Limited
VIN , Input peak Transient Voltage to regulator wrt GND		VIN			7.0	V
VOUT1, VOUT2, Regulated Output	Voltage	VOUT		-0.3	VIN + 0.3 or 6.0 (Note 1)	V
	Current	IOUT		-	Internally Limited
EN1, EN2, Enable Input		VEN		-0.3	VIN + 0.3 or 6.0 (Note 1)	V
Junction Temperature Storage Temperature		TJ Tstg		- -50	125 150
ESD Capability, Human body model (Note 3)		ESDHB		-2	2	kV
ESD Capability, Machine model (Note 3)		ESDMM		-200	200	V
Voutx-V in (Note 2)		VRB		-	0.3	V

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
  1. Which ever limit is lower
  2. Exceeding this value will turn on the body diode of the PMOS driver (reference Figure 2).


Description

The NCP590 is a family of very high precision dual-output CMOS LDOs offered in a 2x2 DFN8 package. Each output is capable of delivering up to 300 mA and is available in voltages from 0.8 V to 5 V.

The set point output voltage is accurate to within ±0.9% with an operating voltage input up to 5.5 V. With its ultra low dropout characteristics and low quiescent and ground current consumption, the NCP590 is ideal for all battery operated consumer and microprocessor applications. The NCP590 is protected against short circuit and thermal overload conditions.