Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
SW to GND…………………………………..-0.3V to +30V
FB to GND…………… ……………………….-0.3V to V
CC
VCC,
SHDN
to
GND.............................…....-0.3V to +7V
Operating Temperature Range (Note 1)..-40°C to +85°C
G5111
Junction Temperature ......….......….........…........+125°C
Storage Temperature…………........…..-65°C to +150°C
Reflow Temperature (soldering, 10sec)…………260°C
Stress beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device.
Electrical Characteristics
(V
CC
= 3.6V,
V
SHDN
= 3.6V, T
A
=
25°C)
PARAMETER
Input Voltage Range
Quiescent Current
FB Comparator Trip Point
Output Voltage Line Regulation
FB Pin Bias Current (Note 2)
Switch Off Time
Switch V
DS(ON)
Switch Current Limit
SHDN
Pin Current
SHDN
Input Voltage High
SHDN
Input Voltage Low
CONDITIONS
Not Switching
V
SHDN
= 0V
2.5V<V
IN
<6.5V
V
FB
= 1.2V
V
FB
> 1V
V
FB
< 0.6V
I
SW
= 300mA
MIN
2.5
---
---
1.18
---
---
---
---
---
300
---
0.9
---
TYP
---
20
0.1
1.2
-0.05
30
500
1.6
250
350
0.1
---
---
0.01
MAX
6.5
35
1
1.22
---
80
---
---
350
400
1
---
0.25
5
UNITS
V
µA
µA
V
%/V
nA
ns
µs
mV
mA
µA
V
V
µA
Switch Leakage Current
Switch Off, V
SW
= 28V
---
Note 1: The G5111 are guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the
-40°C to 85°C operating temperature range are assured by design, characterization and correlation with sta-
tistical process controls.
Note 2: Bias current flows into the FB pin.
Block Diagram
L1
V
IN
C1
VCC
SHDN
SW
C2
V
OUT
BIAS
VOUT
SHUTDOWN
LOGIC
PUMP CONTROL
OC
DRIVER
COMP
en_sw
+
T
OFF
PULSE
CONTROL
R1
+
ERROR
COMP
FB
R2
1.2V
VREF
GND
Ver: 1.2
Sep 09, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
2
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
