Switch LDO to TI TPS76133

Lower drop-out voltage than the MIC5205.
Doesn't use a bypass cap either, so remove C5

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/telemini.pcb b/telemini.pcb
index f3f1d9f9cd7723a0dd1f0632b4d2a5fc108ca13c..c6420cde5a48db179450931789a6816a3d7587f5 100644 (file)
--- a/telemini.pcb
+++ b/telemini.pcb
@@ -9,7 +9,7 @@ Grid[100.000000 0.0000 0.0000 0]
 PolyArea[200000000.000000]
 Thermal[0.500000]
 DRC[6.00mil 6.00mil 6.00mil 10.00mil 15.00mil 7.00mil]
-Flags("showdrc,nameonpcb,clearnew,hidenames")
+Flags("showdrc,nameonpcb,clearnew,snappin,hidenames")
 Groups("1,c:4,s:2:3:5")
 Styles["Signal,6.00mil,30.00mil,15.00mil,6.00mil:Power,25.00mil,60.00mil,35.00mil,10.00mil:Fat,40.00mil,60.00mil,35.00mil,10.00mil:Medium,15.00mil,30.00mil,15.00mil,6.00mil"]
 
@@ -1381,13 +1381,6 @@ Element["" "0402" "R13" "27k" 258.00mil 9.7602mm 23.00mil 0.8062mm 1 80 ""]
 
        )
 
-Element["" "0402" "C5" "470pF" 3.5748mm 515.00mil -2.0000mm -26.00mil 0 80 ""]
-(
-       Pad[-15.74mil -3.93mil -15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
-       Pad[15.74mil -3.93mil 15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
-
-       )
-
 Element["" "0402" "R17" "9.09k" 6.5598mm 540.00mil 0.3998mm 28.00mil 3 80 ""]
 (
        Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
@@ -1395,7 +1388,7 @@ Element["" "0402" "R17" "9.09k" 6.5598mm 540.00mil 0.3998mm 28.00mil 3 80 ""]
 
        )
 
-Element["" "SOT23-5" "U2" "MIC5205" 136.00mil 441.00mil 63.00mil -50.00mil 3 89 ""]
+Element["" "SOT23-5" "U2" "TPS76133" 136.00mil 441.00mil 63.00mil -50.00mil 3 89 ""]
 (
        Attribute("author" "DJ Delorie")
        Attribute("copyright" "2006 DJ Delorie")
@@ -1870,9 +1863,6 @@ Layer(1 "top")
        Line[15.3831mm 18.8121mm 622.00mil 757.00mil 6.00mil 12.00mil "clearline"]
        Line[218.00mil 515.00mil 218.00mil 484.00mil 15.00mil 12.00mil "clearline"]
        Line[218.00mil 484.00mil 214.00mil 480.00mil 15.00mil 12.00mil "clearline"]
-       Line[186.52mil 515.00mil 3.9746mm 515.00mil 15.00mil 12.00mil "clearline"]
-       Line[125.00mil 515.00mil 125.00mil 452.00mil 15.00mil 12.00mil "clearline"]
-       Line[125.00mil 452.00mil 136.00mil 441.00mil 15.00mil 12.00mil "clearline"]
        Line[175.00mil 400.00mil 175.00mil 515.00mil 15.00mil 12.00mil "clearline"]
        Line[6.5598mm 524.26mil 6.5598mm 463.26mil 6.00mil 12.00mil "clearline"]
        Line[6.5598mm 463.26mil 258.00mil 463.00mil 6.00mil 12.00mil "clearline"]
@@ -1937,6 +1927,7 @@ Layer(1 "top")
        Line[554.00mil 62.00mil 543.00mil 51.00mil 6.00mil 12.00mil "clearline"]
        Line[741.00mil 331.00mil 741.00mil 272.00mil 6.00mil 12.00mil "clearline"]
        Line[741.00mil 272.00mil 751.00mil 262.00mil 6.00mil 12.00mil "clearline"]
+       Line[4.7376mm 515.00mil 175.00mil 515.00mil 15.00mil 12.00mil "clearline"]
        Polygon("lock")
        (
                [1240.00mil 10.00mil] [1490.00mil 10.00mil] [1490.00mil 330.00mil] [1300.00mil 330.00mil] [1300.00mil 200.00mil] 

diff --git a/telemini.sch b/telemini.sch
index 1bce30f23653c3bb83b1c5df5c7c59cf1789f220..c9d951c113996c3835701712ea0ff54b03668383 100644 (file)
--- a/telemini.sch
+++ b/telemini.sch
@@ -1,4 +1,4 @@
-v 20121123 2
+v 20130925 2
 C 50300 43500 1 0 0 CC1111.sym
 {
 T 54500 55800 5 10 1 1 0 0 1
@@ -1110,25 +1110,6 @@ refdes=C8
 T 37500 42300 5 10 1 1 180 0 1
 value=47uF
 }
-C 39700 42800 1 270 0 capacitor.sym
-{
-T 40400 42600 5 10 0 0 270 0 1
-device=CAPACITOR
-T 39700 42800 5 10 0 0 270 0 1
-vendor_part_number=311-1028-1-ND
-T 39700 42800 5 10 0 0 270 0 1
-footprint=0402
-T 39700 42800 5 10 0 0 270 0 1
-vendor=digikey
-T 40000 42500 5 10 1 1 0 0 1
-refdes=C5
-T 40000 42000 5 10 1 1 0 0 1
-value=470pF
-T 39700 42800 5 10 0 1 0 0 1
-loadstatus=smt
-T 39700 42800 5 10 0 1 0 0 1
-symversion=0.1
-}
 C 37500 42300 1 0 0 TC2185.sym
 {
 T 38095 42995 5 10 0 1 0 0 1
@@ -1138,16 +1119,15 @@ footprint=SOT23-5
 T 37500 42300 5 10 0 0 0 0 1
 vendor=digikey
 T 37500 42300 5 10 0 0 0 0 1
-vendor_part_number=576-1259-1-ND
+vendor_part_number=296-11010-1-ND
 T 37500 42300 5 10 0 0 0 0 1
 loadstatus=smt
 T 37795 43495 5 10 1 1 0 0 1
 refdes=U2
 T 38600 43500 5 10 1 1 0 0 1
-value=MIC5205
+value=TPS76133
 }
 C 38500 41550 1 0 0 gnd.sym
-N 39600 42800 39900 42800 4
 C 39100 45800 1 180 1 conn-4.sym
 {
 T 39450 45850 5 10 1 1 0 0 1
@@ -1716,3 +1696,10 @@ refdes=R5
 T 37700 54400 5 10 1 1 180 0 1
 value=1k
 }
+C 39600 42700 1 0 0 nc-right.sym
+{
+T 39700 43200 5 10 0 0 0 0 1
+value=NoConnection
+T 39700 43400 5 10 0 0 0 0 1
+device=DRC_Directive
+}