ML4854IT Fairchild, ML4854IT Datasheet - Page 3

• Manufacturer Part Number: ML4854IT
• Description: Adjustable / Low-Current / 2-Cell Boost Regulator with Shutdown and Low Battery Detect
• Manufacturer: Fairchild

ML4854
Recommended Operating Conditions
Electrical Characteristics
Unless otherwise specified, V
at T
REV. 1.0.7 5/6/03
Parameter
Temperature Range
V
V
Parameter
Start Up Voltage
Operating Voltage
Output Voltage
Output Voltage Adjust Range
Steady State Output Current
(see diagram)
Pulse Width
Minimum Off-Time
Line Regulation
Load Regulation
Feedback Voltage (VFB)
LBI Threshold Voltage
LBI Hysteresys
Internal NFET, PFET ON Resist.
Efficiency
Quiescent Current – SHDN
LBO Output Voltage
SHDN Input Voltage @V
SHDN Input Voltage @V
IN
OUT
A
= +25°C
Operating Range
Operating Range
IN
IN
=3V
=1.6V
IN
=1.6V to 3V, I
I
After start I
V
V
V
V
V
V
V
V
V
V
0 to 250mA V
0 to 150mA V
I
(I
SHDN=0V, R1 excluded,V
SHDN=3V, R1 excluded,V
V
V
V
LOAD
LOAD
LOAD
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
OUT
LBI
OUT
OUT
=1.6V to 3V, I
= 3V
= 2.4V
= 1.8V
= 1.5V
= 0, I
(nom.)=3.3V
(nom.)=5V
=3.3V, V
=5V, V
=5V
=3.3V/5V
=3.3V/5V
<1mA
= 100mA
=200mA) V
LOAD
SINK
LOAD
=1mA, T
IN
=1mA
IN
IN
Conditions
IN
=2.5V
=2.4V ,V
=2.4V ,V
=2.5V
=10mA, V
OUT
IN
=3V, V
A
=2mA, V
=-40°C to +85°C. Test Circuit Fig.1. Typical values are
OUT
OUT
OUT
IN
IN
OUT
=3.3V
=5V
=3V
=3V
OUT
=3.3V/5V
= 3.3V
=3.3V
Min.
-40
1.6
3.0
4.775
Min.
3.15
0.8
0.8
1.2
1.8
2.2
3
0.9 V
Max.
+85
5.0
1.230
0.390
Typ.
1.25
1.32
1.64
2.15
2.57
PRODUCT SPECIFICATION
500
330
275
3.3
0.5
0.5
0.5
1.0
1.0
1.6
0.8
25
95
26
85
0.2
OUT
5
5.225
Max.
3.45
100
200
1.5
1.9
2.3
3.1
4.0
5
Units
°C
V
V
Units
m Ω
mA
mA
mV
µ A
µ A
µ s
µ s
µ s
µ s
µ s
%
%
%
%
V
V
V
V
V
V
V
V
V
V
%
3