Burr Brown REG103UA-5, REG103UA-5-2K5, REG103UA-A, REG103UA-A-2K5, REG103FA-A-500 Datasheet

...

0 (0)

Burr Brown REG103UA-5, REG103UA-5-2K5, REG103UA-A, REG103UA-A-2K5, REG103FA-A-500 Datasheet

For most current data sheet and other product information, visit www.burr-brown.com

REG103	REG103
	REG103
	REG103

REG103

DMOS

500mA Low Dropout Regulator

FEATURES

●NEW DMOS TOPOLOGY: Ultra Low Dropout Voltage:

115mV typ at 500mA and 3.3V Output Output capacitor NOT required for stability

●FAST TRANSIENT RESPONSE

●VERY LOW NOISE: 33μVrms

●HIGH ACCURACY: ±2% max

●HIGH EFFICIENCY:

IGND = 1mA at IOUT = 500mA Not Enabled: IGND = 0.5μA

●2.5V, 2.7V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS

●FOLDBACK CURRENT LIMIT

●THERMAL PROTECTION

●OUTPUT VOLTAGE ERROR INDICATOR(1)

●SMALL SURFACE-MOUNT PACKAGES: SOT223-5, DDPAK-5, SO-8

APPLICATIONS

●PORTABLE COMMUNICATION DEVICES

●BATTERY-POWERED EQUIPMENT

●PERSONAL DIGITAL ASSISTANTS

●MODEMS

●BAR-CODE SCANNERS

●BACKUP POWER SUPPLIES

DESCRIPTION

The REG103 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 115mV 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 1mA (at IOUT = 500mA) and drops to 0.5μA in “not enabled” mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG103 has very low output noise (typically 33μVrms for VOUT = 3.3V with CNR = 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

guaranteed over the specified temperature range (–40°C to +85°C).

The SO-8 version of the REG103 has an Error pin which provides a “power good” flag indicating the regulator is in regulation. The REG103 is well protected: internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. In addition to the SO-8 package, the REG103 is also available in the DDPAK and the SOT223-5.

	Enable Error(1)				Enable Error(1)
VIN	REG103	VOUT	VIN			VOUT
+	REG103	+	+		R1	+
0.1 F	(Fixed Voltage	+	+	0.1 F	R1	+
0.1 F	(Fixed Voltage	COUT(2)		0.1 F	REG103-A	COUT(2)
	Versions)				Adj
NR	Gnd				R2
	Gnd				Gnd

NR = Noise Reduction

NOTE: (1) SO-8 Package Only. (2) Optional.

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd.,Tucson, AZ 85706 • Tel: (520) 746-1111 Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • ImmediateroductP Info: (800) 548-6132

© 2000 Burr-Brown Corporation	PDS-1527C	Printed in U.S.A. July, 2000
	1	REG103

SPECIFICATIONS

At TJ = +25°C, VIN = VOUT + 1V (VOUT = 3.0V for REG103-A), VENABLE = 2V, IOUT = 10mA, CNR = 0.01μF, and COUT = 0.1μF(1), unless otherwise noted. Boldface limits apply over the specified temperature range, TJ = –40°C to +85°C.

REG103GA

REG103UA

REG103FA

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

Output Voltage Range

VOUT

REG103-2.5

2.5

REG103-2.7

2.7

REG103-3.0

3.0

REG103-3.3

3.3

REG103-5

REG103-A

VREF

5.5

Reference Voltage

VREF

1.295

Adjust Pin Current

IADJ

0.2

μA

Accuracy

±0.5

±2

TJ = –40°C to +85°C

±2.8

vs Temperature

dVOUT/dT

±2.5

ppm/°C

vs Line and Load

IOUT = 10mA to 500mA, VIN = (VOUT + 0.7V) to 15V

±0.5

TJ = –40°C to +85°C

VIN = (VOUT + 0.9V) to 15V

±3.5

DC DROPOUT VOLTAGE(2, 3)

= 10mA

DROP

OUT

For all models except 5V

IOUT = 500mA

115

200

For 5V model

IOUT = 500mA

160

250

For all models except 5V

IOUT = 500mA

230

TJ = –40°C to +85°C

For 5V models

IOUT = 500mA

280

TJ = –40°C to +85°C

VOLTAGE NOISE

f = 10Hz to 100kHz

30μVrms/V • VOUT

μVrms

Without CNR (all models)

CNR = 0, COUT = 0

With CNR (all fixed voltage models)

CNR = 0.01μF, COUT = 10μF

10μVrms/V • VOUT

μVrms

OUTPUT CURRENT

Current Limit(4)

550

700

950

TJ = –40°C to +85°C

500

1000

RIPPLE REJECTION

f = 120Hz

ENABLE CONTROL

VENABLE High (output enabled)

VENABLE

VIN

VENABLE Low (output disabled)

, V = 2.1V to 6.5(5)

–0.2

0.5

ENABLE

High (output enabled)

= 2V to V

100

ENABLE

IENABLE Low (output disabled)

VENABLE = 0V to 0.5V

100

Output Disable Time

μs

Output Enable Softstart Time

1.5

FLAG(6)

ERROR

μA

Current, Logic High (open drain)—Normal Operation

VIN = VERROR = VOUT + 1V

0.1

Voltage, Logic Low—On Error

Sinking 500μA

0.2

0.4

THERMAL SHUTDOWN

Junction Temperature

°C

Shutdown

150

Reset from Shutdown

130

°C

GROUND PIN CURRENT

Ground Pin Current

IGND

IOUT = 10mA

0.5

0.7

IOUT = 500mA

1.3

Enable Pin Low

VENABLE ≤ 0.5V

0.5

μA

INPUT VOLTAGE

VIN

Operating Input Voltage Range(7)

2.1

Specified Input Voltage Range

VIN > 2.7V

VOUT + 0.7

TJ = –40°C to +85°C

VIN > 2.9V

VOUT + 0.9

TEMPERATURE RANGE

°C

Specified Range

–40

+85

Operating Range

–55

+125

°C

Storage Range

–65

+150

°C

Thermal Resistance

θJC

°C/W

DDPAK-5 Surface Mount

Junction-to-Case

SO-8 Surface Mount

θJA

Junction-to-Ambient

150

°C/W

SOT223-5 Surface Mount

θJC

Junction-to-Case

°C/W

NOTES: (1) The REG103 does not require a minimum output capacitor for stability. However, transient response can be improved with proper capacitor selection. (2) Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at VIN = VOUT + 1V at fixed load. (3) Not applicable

for VOUT less than 2.7V. (4) Current limit is the output current that produces a 10% change in output voltage from VIN = VOUT + 1V and IOUT = 10mA. (4) For VIN > 6.5V see typical performance curve “VENABLE vs IENABLE.” (6) Logic low indicates out of regulation condition by approximately 10%, or thermal shutdown. (7) The REG103 no longer regulates when VIN < VOUT + VDROP (MAX). In drop-out or when the input voltage is between 2.7V and 2.1V, the impedance from VIN to VOUT is typically less than 1Ω at TJ = +25°C. See typical performance curve.

	REG103	2

PIN CONFIGURATIONS

Top View

DDPAK-5

SO-8

SOT223-5

Tab is GND

VOUT

VIN

Tab is GND

VOUT

VIN

1 2

3 4

NR/Adjust(1)

Error

GND

Enable

GND

VIN

GND

Enable

NR/Adjust(1)

Enable

VOUT

(1)

NR/Adjust

(FA Package)

(UA Package)

(GA Package)

NOTE: (1) For REG103A-A: voltage setting resistor pin.

All other models: noise reduction capacitor pin.

ABSOLUTE MAXIMUM RATINGS(1)

.......................................................Supply Input Voltage, VIN	–0.3V to 16V
Enable Input ............................................................................	–0.3V to VIN
Error Flag Output .....................................................................	–0.3V to 6V
Error Flag Current ...............................................................................	2mA
Output Short-Circuit Duration ......................................................	Indefinite
Operating Temperature Range .......................................	–55°C to +125°C
Storage Temperature Range ..........................................	–65°C to +150°C
Junction Temperature .....................................................	–55°C to +150°C
Lead Temperature (soldering, 3s, SO-8, SOT and DDPAK) ................	+240°C

NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.

ELECTROSTATIC DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.

3	REG103

PACKAGE/ORDERING INFORMATION

		PACKAGE	SPECIFIED
		DRAWING	TEMPERATURE	PACKAGE	ORDERING	TRANSPORT
PRODUCT	PACKAGE	NUMBER	RANGE	MARKING	NUMBER(1)	MEDIA
5V Output			–40°C to +85°C
REG103FA-5(2)	DDPAK-5	325	–40°C to +85°C	REG103FA-5.0	REG103FA-5	Rails
"	"	"	"	"	REG103FA-5/500	Tape and Reel
REG103UA-5	SO-8	182	–40°C to +85°C	REG103U50	REG103UA-5	Rails
"	"	"	"	"	REG103UA-5/2K5	Tape and Reel
REG103GA-5(2)	SOT223-5	364	–40°C to +85°C	R103G50	REG103GA-5	Rails
"	"	"	"	"	REG103GA-5/2K5	Tape and Reel
3.3V Output			–40°C to +85°C
REG103FA-3.3(2)	DDPAK-5	325	–40°C to +85°C	REG103FA-3.3	REG103FA-3.3	Rails
"	"	"	"	"	REG103FA-3.3/500	Tape and Reel
REG103UA-3.3	SO-8	182	–40°C to +85°C	REG103UA4	REG103UA-3.3	Rails
"	"	"	"	"	REG103UA-3.3/2K5	Tape and Reel
REG103GA-3.3(2)	SOT223-5	364	–40°C to +85°C	R103G33	REG103GA-3.3	Rails
"	"	"	"	"	REG103GA-3.3/2K5	Tape and Reel
3.0V Output			–40°C to +85°C
REG103FA-3(2)	DDPAK-5	325	–40°C to +85°C	REG103FA-3.0	REG103FA-3	Rails
"	"	"	"	"	REG103FA-3/500	Tape and Reel
REG103UA-3(2)	SO-8	182	–40°C to +85°C	REG103U30	REG103UA-3	Rails
"	"	"	"	"	REG103UA-3/2K5	Tape and Reel
REG103GA-3(2)	SOT223-5	364	–40°C to +85°C	R103G30	REG103GA-3	Rails
"	"	"	"	"	REG103GA-3/2K5	Tape and Reel
2.7V Output			–40°C to +85°C
REG103FA-2.7(2)	DDPAK-5	325	–40°C to +85°C	REG103FA-2.7	REG103FA-2.7	Rails
"	"	"	"	"	REG103FA-2.7/500	Tape and Reel
REG103UA-2.7	SO-8	182	–40°C to +85°C	REG103U27	REG103UA-2.7	Rails
"	"	"	"	"	REG103UA-2.7/2K5	Tape and Reel
REG103GA-2.7(2)	SOT223-5	364	–40°C to +85°C	R103G27	REG103GA-2.7	Rails
"	"	"	"	"	REG103GA-2.7/2K5	Tape and Reel
2.5V Output			–40°C to +85°C
REG103FA-2.5(2)	DDPAK-5	325	–40°C to +85°C	REG103FA-2.5	REG103FA-2.5	Rails
"	"	"	"	"	REG103FA-2.5/500	Tape and Reel
REG103UA-2.5	SO-8	182	–40°C to +85°C	REG103U25	REG103UA-2.5	Rails
"	"	"	"	"	REG103UA-2.5/2K5	Tape and Reel
REG103GA-2.5(2)	SOT223-5	364	–40°C to +85°C	R103G25	REG103GA-2.5	Rails
"	"	"	"	"	REG103GA-2.5/2K5	Tape and Reel
Adjustable Output			–40°C to +85°C
REG103FA-A(2)	DDPAK-5	325	–40°C to +85°C	REG103FAA	REG103FA-A	Rails
"	"	"	"	"	REG103FA-A/500	Tape and Reel
REG103UA-A	SO-8	182	–40°C to +85°C	REG103UA	REG103UA-A	Rails
"	"	"	"	"	REG103UA-A/2K5	Tape and Reel
REG103GA-A(2)	SOT223-5	364	–40°C to +85°C	R103GA	REG103GA-A	Rails
"	"	"	"	"	REG103GA-A/2K5	Tape and Reel

NOTES: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “REG103UA-5/2K5” will get a single 2500-piece Tape and Reel. (2) Scheduled availability June, 2000.

	REG103	4

+ 9 hidden pages