This is my first post to this forum after a fairly thorough lurking period.
I have 2 nagging questions so far.
Am I missing something or are you guys??
Why is there what seems to be a conspicuous absense of driver circuits based on the TPS63000-Q1 minimal component, high quality, high efficiency, buck boost converter??
thanks for the guidelines and feedback.
I have been unsuccessful acquiring samples.
the first person who prototypes this will become the new expert on it.
addendum..
description: advanced, high efficiency, single inductor, buck-boost converter chip
brand: not prototyped yet
version: n/a
type: buck/boost converter 10 pin qfn powerpad package
voltage input range: 1.8-5.5dc
startup input voltage range: 1.9-5.5dc
output voltage: 1.2-5.5 adjustable
current ranges: up to 1.2amps out at 3.3v buck mode with Vin= 3.6-5.5vdc
up to 800 ma out at 3.3v boost mode with Vin > 2.4 vdc
switching current limit: 1.6-2.1 amps, 1.8 amps typ
other features: up to 96% efficiency, power save mode available, thermal shutdown protection, minimum addon components, soft start, small package size
notes: advanced design will need specialized heatsink and soldering methods
approx price (chip only): $2.35 usd for 1000 unit quantity
pdf sheet containing circuit, parts list, and full parameters:
http://focus.ti.com/lit/ds/symlink/tps63000-q1.pdf
and yes, drlava, i did lurk my way thru the flexdrives etal.