Gamma GM6655-3.0ST25RG 600ma low dropout cmos voltage regulator with enable function Datasheet

GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Description
Features
The GM6655 series is a low-dropout linear regulator.
This series is specially designed for battery-operated
systems. The ground current is very low (50µA Typ),
that significantly extending battery life. Low power
consumption and high accuracy is achieved through
CMOS and programmable fuse technologies with the
output voltage range from 1.5V to 6.0V.
The GM6655 consists of a high-precision voltage
reference, an error correction circuit, and a current
limited output driver. With good transient responses,
output remains stable even during load changes. The
SHDN input enables the output to be turned off,
resulting in reduced power consumption.
‹
Maximum output current up 600mA
‹
Highly accurate output voltage:
±1.5%
‹
Low power consumption
‹
On-chip protections: Thermal, and
Short Circuit
‹
Small input/output differential:
600mV at 600mA
Also, the GM6655 having high ripple rejection ratios,
the series can be used with power supply noise. A
470pF capacitor from the bypass input to ground
reduces noise present on the internal reference, which
in turn significantly reduces output noise. If output
noise is not a concern, this input may be left
unconnected. Larger capacitor values Cbp be used, but
results in a longer time period to rated output voltage
when power is initially applied.
The GM6655 incorporates both over-temperature and
over-current protection.
Application
Battery Operated Systems
Reference Voltage Sources
Portable Computers
Instruments
Pagers
Portable Caremas and Video Recorders
Typical Application Circuits
GM6655-x.x
Enable
EN
Shutdown
1
5
1
COUT = 1µF
2
3
VOUT = VREF (1+ R2/R1)
VIN
EN
CBP
Figure 1 Fixed output version
COUT = 1µF
2
Enable
BP
4
5
3
Shutdown
R1
Adj
4
R2
Figure 2. Adjustable output version
Note: EN (Pin 3) maybe connected directly to VIN (Pin1)
GM6655V2.05
VIN
GM6655-Adj
VOUT
1
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Marking Information and Pin Configurations (Top View)
SOT25
OUT
BYP/ADJ
5
4
FEVYW
1
2
3
IN
GND
EN
FE: Device Code, Green Product
V: Voltage Code (see next page)
Y: Year
W: Week code
Pin Descriptions
Pin Number
Pin Name
1
IN
2
GND
3
EN
4
Pin Function
Supply Input
Ground
Enable/Shutdown (Input): CMOS compatible input. Logic high =
Enable; logic low or open = shutdown
Fixed output
BYP
Reference Bypass: Connect external 470pF capacitor to GND to
reduce output noise. May be left open.
Adjustable
output
ADJ
Adjust (Input): Adjustable regulator feedback input. Connect to
resistor voltage divider
OUT
Regulator Output
5
Ordering Information
Output Voltage
Voltage Code
Package
Shipping
Adj
A
SOT-25
3,000 Units/Tape and Reel
GM6655-1.8ST25RG
1.8V
E
SOT-25
3,000 Units/Tape and Reel
GM6655-2.0ST25RG
2.0V
F
SOT-25
3,000 Units/Tape and Reel
GM6655-2.5ST25RG
2.5V
G
SOT-25
3,000 Units/Tape and Reel
GM6655-2.7ST25RG
2.7V
T
SOT-25
3,000 Units/Tape and Reel
GM6655-2.8ST25RG
2.8V
H
SOT-25
3,000 Units/Tape and Reel
GM6655-2.9ST25RG
2.9V
X
SOT-25
3,000 Units/Tape and Reel
GM6655-3.0ST25RG
3.0V
J
SOT-25
3,000 Units/Tape and Reel
GM6655-3.3ST25RG
3.3V
K
SOT-25
3,000 Units/Tape and Reel
GM6655-3.6ST25RG
3.6V
L
SOT-25
3,000 Units/Tape and Reel
GM6655-4.0ST25RG
4.0V
M
SOT-25
3,000 Units/Tape and Reel
GM6655-4.2ST25RG
4.2V
Y
SOT-25
3,000 Units/Tape and Reel
GM6655-5.0ST25RG
5.0V
Q
SOT-25
3,000 Units/Tape and Reel
Ordering Number
GM6655V2.05
GM6655-AST25RG
2
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Absolute Maximum Ratings
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
VIN
7
V
Output Current
IOUT
600
mA
Output Voltage
VOUT
VSS – 0.3 to VIN +0.3
V
PD
300
mW
Operating Ambient Temperature
TA
- 40 to 125
℃
Storage Temperature
Tstg
- 65 to 150
℃
+ 260
℃
Continuous Total Power
Dissipation
SOT-25
Lead Temperature (Soldering, 10 sec)
Block Diagram
IN
OUT
BYP
VOUT
VIN
IN
VOUT
OUT
COUT
ADJ
CBYP
(Optional)
R1
R2
VREF
EN
VREF
EN
COUT
CBYP
(Optional)
Current Limit
Current Limit
GND
Ultra Low Noise Fixed Regulator
GND
Ultra Low Noise Adjustable Regulator
VOUT = VREF (1+ R2/R1)
GM6655V2.05
VIN
3
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Electrical Characteristics (TA = 25℃, VIN = VOUT + 1V unless otherwise noted)
Parameter
Symbol
Output Voltage Accuracy, Note 2
Condition
Min
-1.5
+1.5
IOUT = 1 to 600mA,
-3.0
+3.0
-0.3
∆VOI
IOUT = 1mA,
VOUT + 0.1V < VIN < 6.5V
Figure 3
Load Regulation, Note 1
∆VOL
1mA < IOUT < 600mA
COUT = 1µF
Figure 4
VOUT > 2.8V
∆V
2.0V < VOUT < 2.8V
IOUT = 600mA
VOUT < 2.0V
Maximum Output Current
IOUTMAX
Output Current Limit
VOUT > 0.96XVRating
ICL
Quiescent Current
VEN= VIN, IOUT = 1 to 600mA,
Figure 5
VEN=Gnd (Shutdwon)
EN Exit Delay
CBP = 0µF, COUT = 1µF,
IOUT = 100mA
TDLY
EN Input Bias Current
IBH
VEN=VIN
EN Input Low Current
IBL
VEN=Gnd
EN Input Threshold Low
VTHL
EN Input Threshold High
VTHH
Power Supply Rejection Ration
Unit
%
0.05
0.3
%/V
0.01
0.04
%/mA
0.6
1.0
0.9
1.4
1.3
1.9
V
600
500
IQ2
Max
IOUT = 1mA,
Line Regulation
Dropout
Voltage
Typ
mA
1,300
mA
50
85
µA
0.001
1
µA
600
µsec
100
-1
nA
-3
µA
0.4
V
2
PSRR
10kHz
V
55
dB
Note 1: Load Regulation is measured using pulse techniques with duty cycle < 5%
Note 2: The nominal value of reference voltage for adjustable version is 1.27V
(VOUT + 1V) ≤ VIN ≤ 6.5V
EN
GM6655V2.05
BP
4
VOUT
GM6655
VIN
EN
BP
1µF
Fig 3. Line Regulation
IOUT = 1mA
VIN
EN
VOUT
GM6655
BP
1µF
1mA ≤ IOUT ≤ 600mA
Pulse with duty cycle 5%
Fig 4. Load Regulation
VOUT
GM6655
IOUT = 600mA
Fig 5. Load Regulation
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Typical Performance Characteristics
80
70
60
50
40
30
20
50mA
10
1mA
0
0.01
30mA
0.1
1
Frequency (kHz)
10
100
Fig 6. PSRR vs. Frequency
GM6655V2.05
Ripple Rejection (dB)
90
5
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Package Outline Dimensions – SOT 25
2.9 ± 0.1
1.9 ± 0.05
0.13
0.95 ± 0.038
Pad Layout
0.028
0.7
0~0.1
1.5 ± 0.05
2.8 ± 0.1
0.039
1.0
0.094
2.4
0.65 ± 0.05
0.8 ± 0.05
0.35 ± 0.03
0.037
0.95
5°
0.074
1.9
5°
GM6655V2.05
1.10 ± 0.1
6
0.037
0.95
Unit:mm
(Inches
)
mm
GM6655
600mA LOW DROPOUT CMOS VOLTAGE
REGULATOR WITH ENABLE FUNCTION
Ordering Number
GM 6655 - 1.8
APM
Gamma
Micro
Circuit
Type
ST25
R
Output
Voltage
Package Type
Shipping Type
1.8 = 1.8V
2.0 = 2.0V
2.5 = 2.5V
3.3 = 3.3V
5.0 = 5.0V
A=adj
ST25: SOT 25
R: Tape & Reel
G
Blank:
Pb-free
G:Green
Note:
Pb-free products:
♦
RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.
♦
Suitable for use in SnPb or Pb-free soldering processes with 100% matte tin (Sn) plating.
♦
Lead-free (RoHS compliant)
♦
Halogen free(Br or Cl does not exceed 900ppm by weight in homogeneous material and total of
Br and Cl does not exceed 1500ppm by weight)
GM6655V2.05
Green products:
7
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