Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
V
IN
to GND. . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 7V
Output Short-Circuit Duration . . . . . . . . . . . . . .Infinite
SET to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
SHDN to GND. . . . . . . . . . . . . . . . . . . . . .-0.3V to 7V
G923
SHDN to IN. . . . . . . . . . . . . . . . . . . . . . . .-7V to 0.3V
OUT to GND. . . . . . . . . . . . . . . . -0.3V to (V
IN
+ 0.3V)
Note
(1)
: See Recommended Minimum Footprint (P.8 Figure 3)
Continuous Power Dissipation (T
A
= 25
°
C)
SOT-23-5. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 520mW
Operating Temperature Range . . . . . . . -40
°
C to 85
°
C
Junction Temperature. . . . . . . . . . . . . . . . . . . . .150
°
C
Thermal Resistance Junction to Ambient, (
θ
JA
)
SOT-23-5. . . . . . . . . . . . . . . . . . . . . . . . 240
°
C/Watt
(1)
Storage Temperature Range. . . . . . . .-65
°
C to 160
°
C
Reflow Temperature (soldering, 10sec) . . . . . . 260
°
C
Stresses beyond those listed under
"Absolute
Maximum Ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Electrical Characteristics
(V
IN
=+3.6V, V
SHDN
=V
IN
, T
A
=T
J
=+25°C, unless otherwise noted.) (Note 1)
PARAMETER
Input Voltage (Note 2)
Output Voltage Accuracy
Adjustable Output Voltage Range (Note 3)
Maximum Output Current
Current Limit (Note 4)
Short Circuit Current
Ground Pin Current
Dropout Voltage (Note 5)
Line Regulation
Load Regulation
Ripple Rejection
Output Noise
I
LIM
Isc
I
Q
I
OUT
=150mA
V
DROP
ΔV
LNR
ΔV
LDR
PSRR
Noise
I
OUT
=300mA, V
OUT
=2.7V
I
OUT
=300mA, V
OUT
>3.0V
SET=GND, V
IN
=V
(STD)
+0.1V to 5.5V , I
OUT
=10mA
I
OUT
= 10mA to 300mA
F=100Hz, 0.45V
P-P
, I
OUT
=10mA
F≤100kHz, Io=0A
F≤100kHz, Io=150mA
F≤100kHz, Io=300mA
SHUTDOWN
SHDN
Input Threshold
SHDN
Input Bias Current
SYMBOL
V
IN
V
OUT
V
OUT
CONDITION
Variation from specified V
OUT
, I
OUT
=1mA
MIN TYP MAX UNIT
2.5
-2
V
SET
300
400
---
---
---
---
---
---
---
---
---
---
---
1.5
---
---
---
---
---
550
280
90
200
500
400
0.1
65
136
238
253
---
---
0.003
0.2
5.5
2
5.5
---
---
---
120
---
700
500
%/V
%
dB
µV
(RMS)
1
---
---
---
---
---
0.4
0.1
1
V
%
V
mA
mA
mA
µA
mV
0.06
0.12
V
IH
V
IL
I
SHDN
I
QSHDN
V
SET
I
SET
T
SHDN
ΔT
SHDN
Regulator enabled
Regulator shutdown
V
SHDN
= V
IN
V
OUT
= 0V
V
IN
= 2.5V to 5.5V,
I
OUT
= 1mA
V
SET
= 1.3V
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
V
µA
µA
V
nA
°C
°C
---
---
Shutdown Supply Current
SET INPUT
SET Reference Voltage (Note 3)
SET Input Leakage Current (Note 3)
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
1.225 1.25 1.275
---
1.25 ---
---
---
---
5
145
25
30
---
---
Note 1: Limits is 100% production tested at T
A
= +25°C. Low duty pulse techniques are used during test to maintain junc-
tion temperature as close to ambient as possible.
Note 2: Guaranteed by line regulation test.
Note 3: Adjustable mode only.
Note 4: Not tested. For design purposes, the current limit should be considered 400mA minimum to 650mA maximum.
Note 5: The dropout voltage is defined as (V
IN
-V
OUT
) when V
OUT
is 100mV below the target value of V
OUT
. The performance of
every G923 part, see
“Typical
Performance Characteristics”.
Ver: 1.5
Jan 16, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
3
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
