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ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
V CC .................................................................................... 7V
BST ............................................................................. 13.2V
BST-SWN ......................................................................... 7V
Peak Output Current < 10 μ s
GH, GL ............................................................................. 2A
Operating Temperature Range
SP6120C ................................................ 0 ° C to +70 ° C
SP6120E .............................................. -40 ° C to +85 ° C
Junction Temperature, T J .......................................... +125 ° C
Storage Temperature Range ....................... -65?C to +150?C
Power Dissipation
ESD Rating ............................................................ 2kV HBM
SWN ....................................................................... -1V to 7V
GH .......................................................... -0.3V to BST +0.3V
GH-SWN .......................................................................... 7V
All Other Pins ........................................... -0.3V to V CC +0.3V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: 3.0V < V CC <5.5V, 3.0V < BST < 13.2, R OSC = 18.7k ? , C COMP = 0.1 μ F, C SS = 0.1 μ F, ENABLE = 3V,
CGH = CGL = 3.3nF, V FB = 1.25V, ISP = ISN = 1.25V, SWN = GND = PGND = 0V, -40 ° C < T AMB <85 ° C (Note 1)
P A R A M E T E R
C O N D I T I O N S
M I N
T Y P
M A X
U N I T S
Q U I E S C E N T C U R R E N T
V C C S u p p l y C u r r e n t
V C C S u p p l y C u r r e n t ( D i s a b l e d )
B S T S u p p l y C u r r e n t
N o S w i t c h i n g
E N A B L E = 0 V
N o S w i t c h i n g
-
-
-
0 . 9 5
5
1
1 . 8
2 0
2 0
m A
μ A
μ A
E R R O R A M P L I F I E R
E r r o r A m p l i f i e r T r a n s c o n d u c t a n c e
6 0 0
μ S
C O M P S i n k C u r r e n t
C O M P S o u r c e C u r r e n t
V F B = 1 . 3 5 V , C O M P = 0 . 5 V , N o
F a u l t s
V F B = 1 . 1 5 V , C O M P = 1 . 6 V
1 5
1 5
3 5
3 5
6 5
6 5
μ A
μ A
C O M P O u t p u t I m p e d e n c e
3
M O h m
V F B I n p u t B i a s C u r r e n t
-
6 0
1 0 0
n A
R E F E R E N C E
E r r o r A m p l i f i e r R e f e r e n c e
T r i m m e d w i t h E r r o r A m p i n U n i t y
1 . 2 3 8
1 . 2 5 0
1 . 2 6 2
V
G a i n
V F B 3 % L o w C o m p a r a t o r
V F B 3 % H i g h C o m p a r a t o r
O S C I L L A T O R & D E L A Y P A T H
| - 3 |
3
% V R E F
% V R E F
O s c i l l a t o r F r e q u e n c y
2 7 0
3 0 0
3 3 0
k H z
O s c i l l a t o r F r e q u e n c y # 2
D u t y R a t i o
R O S C V o l t a g e
R O S C = 1 0 . 2 k O h m
L o o p I n C o n t r o l - 1 0 0 % D C
p o s s i b l e
I n f o r m a t i o n O n l y - M o v e s w i t h
O s c i l l a t o r T r i m
4 5 0
5 0 0
9 5
0 . 6 5
5 5 0
k H z
%
V
M i n i m u m G H P u l s e W i d t h
V C C > 4 . 5 V , R a m p u p C O M P
V o l t a g e > 0 . 6 V u n t i l G H s t a r t s
S w i t c h i n g
1 2 0
n s
Date: 1/21/05
SP6120 Low Voltage, AnyFET TM , Synchronous, Buck Controller
2
? Copyright 2005 Sipex Corporation
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