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REG102NA-5/250 +BOM

250-mA, 10-V, low-dropout voltage regulator with enable

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

REG102NA-5/250
Datasheet:

REG102NA-5/250 Datasheet (PDF)
Output Options:

Adjustable Output, Fixed Output
Iout (max) (A):

0.25
Vin (max) (V):

10
Vin (min) (V):

2.2
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REG102NA-5/250 General Description

The REG102 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 150mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.

Typical ground pin current is only 600µA (at I_OUT = 250mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG102 has very low output noise (typically 28µVrms for V_OUT = 3.3V with C_NR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (40°C to +85°C).

The REG102 is well protectedinternal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.

Key Features

NEW DMOS TOPOLOGY:
Ultra Low Dropout Voltage:
150mV typ at 250mA
Output capacitor not Required for Stability
FAST TRANSIENT RESPONSE
VERY LOW NOISE: 28 µVrms
HIGH ACCURACY: ±1.5% max
HIGH EFFICIENCY:
I_GND = 600 µA at I_OUT = 250mA
Not Enabled: I_GND = 0.01 µA
2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
FOLDBACK CURRENT LIMIT
THERMAL PROTECTION
SMALL SURFACE-MOUNT PACKAGES:
SOT23-5, SOT223-5, and SO-8
APPLICATIONS
- PORTABLE COMMUNICATION DEVICES
- BATTERY-POWERED EQUIPMENT
- PERSONAL DIGITAL ASSISTANTS
- MODEMS
- BAR-CODE SCANNERS
- BACKUP POWER SUPPLIES

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Specifications

Output options	Adjustable Output, Fixed Output	Iout (max) (A)	0.25
Vin (max) (V)	10	Vin (min) (V)	2.2
Vout (max) (V)	5.5	Vout (min) (V)	2.5
Fixed output options (V)	2.5, 2.8, 2.85, 3, 3.3, 5	Noise (µVrms)	28
Iq (typ) (mA)	0.4	Thermal resistance θJA (°C/W)	150
Rating	Catalog	Load capacitance (min) (µF)	0
Regulated outputs (#)	1	Features	Enable
Accuracy (%)	2	PSRR at 100 KHz (dB)	46
Dropout voltage (Vdo) (typ) (mV)	150	Operating temperature range (°C)	-40 to 85
feature-type	LDO	feature-number-of-outputs	1
feature-polarity	Positive	feature-accuracy-	±1.5
feature-process-technology		feature-output-type	Fixed
feature-output-voltage-v	5	feature-maximum-output-current-a	0.25
feature-minimum-input-voltage-v	1.8	feature-maximum-input-voltage-v	10
feature-maximum-dropout-voltage-current-v	0.01@5mA\|0.22@250mA	feature-line-regulation
feature-load-regulation		feature-maximum-power-dissipation-mw
feature-packaging	Tape and Reel	feature-rad-hard	No
feature-pin-count	5	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-escc-qualified
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	Yes	feature-svhc-exceeds-threshold	No

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Good quality board, working. The parcel reached in a month, the track was not tracked.

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