LT3071_15 Datasheet, PDF (14/30 Pages) Linear Technology – 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator with Analog Margining

LT3071
BLOCK DIAGRAM
27 ^BIAS
IN
5-8
UVLO AND
THERMAL
SHUTDOWN
REF/BYP ₊
EAMP
–
BUF
LDO CORE
I_SENSE
+
–
DETECT
I_{MON 21}
OUT
15-18
SENSE
19
PWRGD
2
VIOC
1
GND
4,9-14,20,26,29
28 ^EN
500k
V_OUT(NOM) + 300mV
V_REF
PROGRAM CONTROL
EN
28
V_O2
25
V_O1
24
V_O0
23
REF/BYP
3
600mV
MARGA
22
TO INTERNAL ENABLE
(SEE ENABLE
THRESHOLD CURVE)
LOGIC HIGH STATE
–
V_BIAS – 0.25V
+
V_O2, V_O1, VO0
V_BIAS
LOGIC HIGH STATE
100k ^VBIAS ^{– 0.9V}
+
–
+
100k
0.75V _–
LOGIC LOW STATE
–
0.25V
+
HIGH IF IN > V_BIAS – 0.25V
HIGH IF IN < V_BIAS – 0.9V
AND IN > 0.75V
TO LOGIC
HIGH IF IN < 0.25V
3070 BD
3071fc
14
For more information www.linear.com/LT3071