r5893 - trunk/gta02-core/bom/research

[werner at docs.openmoko.org]

Author: werner
Date: 2010-04-04 07:20:23 +0200 (Sun, 04 Apr 2010)
New Revision: 5893

Modified:
   trunk/gta02-core/bom/research/STATUS
   trunk/gta02-core/bom/research/u4904
Log:
Researched the Analogic Tech AAT1275IRN-5.0-T1



Modified: trunk/gta02-core/bom/research/STATUS
===================================================================
--- trunk/gta02-core/bom/research/STATUS	2010-04-04 03:53:21 UTC (rev 5892)
+++ trunk/gta02-core/bom/research/STATUS	2010-04-04 05:20:23 UTC (rev 5893)
@@ -2,7 +2,6 @@
 
 Part			File		Status
 ----------------------	--------------	---------------------------------------
-AAT1275IRN-5.0-T1	u4904		not researched yet
 ATR0610-PQQ		u7601		borderline availability
 ATR0635-7KQY		u7608		borderline av., expensive or long lead
 DFBM-CS320-FI1R
@@ -25,6 +24,7 @@
 								| Mech| Functn
 								| | Pins|
 ----------------------	--------------	----------------------  +-+-+-+-+------
+AAT1275IRN-5.0-T1	u4904		not found yet		X - X X 1
 BF2520-B2R4CAB/LF	u8002		not found yet		X - - - -
 BTP-03JA4G		con1701		no distributor		X ? ? - -
 FA2012-KR40PAA		u6007		not found yet		X - - - -
@@ -33,7 +33,9 @@
 SN74AUP1G00DCKR		u4902		borderline availab.	X - - - -
 WTE06016		ant8001		not found		X X ? - -
 
+1) No fault indication
 
+
 OPTIMIZATION:
 
 Part			File		Status

Modified: trunk/gta02-core/bom/research/u4904
===================================================================
--- trunk/gta02-core/bom/research/u4904	2010-04-04 03:53:21 UTC (rev 5892)
+++ trunk/gta02-core/bom/research/u4904	2010-04-04 05:20:23 UTC (rev 5893)
@@ -3,3 +3,23 @@
 Research needed. It's a US company yet the part is unknown in the west :-(
 
 AAT1275IRN-5.0-T1   LNR-IC USB POWER SWITCH AAT1275IRN-5.0-T1 2.7-5.0V 50
+
+
+Some similar chips (from a search for fixed 5V output. Note that, for
+some reason, the AAT1275IRN-5.0-T1 uses an output configuration typical
+for adjustable voltages):
+
+Analog Devices ADP2503ACPZ-5.0-R7 or ADP2504ACPZ-5.0-R7
+http://www.analog.com/static/imported-files/data_sheets/ADP2503_ADP2504.pdf
+
+TI TPS61092RSAR or TPS61032RSAR
+http://focus.ti.com/lit/ds/symlink/tps61090.pdf
+http://focus.ti.com/lit/ds/symlink/tps61030.pdf
+
+Device			Package		Current	Inductor Caps	Enable	Fault
+----------------------	---------------	-------	-------- ------	------	-----
+AAT1275IRN-5.0-T1	16-TDFN, 3x4mm 	500mA	2.2uH	 10.4uF	H	L
+ADP2503ACPZ-5.0-R7	10-LFCSP, 3x3mm	600mA	1.6uH	 32  uF	H	-
+ADP2504ACPZ-5.0-R7	10-LFCSP, 3x3mm	1A	1.6uH	 32  uF	H	-
+TPS61092RSAR		16-QFN, 4x4mm	500mA	6.8uH	112.2uF	H	-
+TPS61032RSAR		16-QFN, 4x4mm	1A	6.8uH	232.2uF	H	-