ST619LBN Datasheet, PDF (1/17 Pages) STMicroelectronics – DC-DC converter regulated 5 V charge pump

ST619LB
DC-DC converter regulated 5 V charge pump
Features
■ Regulated 5 V ±4 % charge pump
■ Output current guaranteed over temperature:
) _{20 mA (VI ≥ 2 V), 30 mA (VI ≥ 3 V)}
t(s ■ No inductors; very low EMI noise
uc ^{■ Uses small, inexpensive capacitors}
d _{■ Logic controlled 1 µA max shut-down supply}
ro current
P _{■ Shut down disconnects load from input}
te _{■ Available in SO-8 and DIP-8 packages}
sole Description
b _{The ST619LB is a step-up charge pump DC-DC}
- ^{O converter which delivers a regulated 5 V ±4 %}
) output at 30 mA and over temperature. The input
t(s ^{voltage range is 2 V to 3.6 V (two battery cells).}
c _{It requires only four external capacitor: two}
u _{0.22 µF flying capacitors, and 10 µF capacitors at}
d _{the input and output.}
Pro ^{Low operating supply current (typ. 200 µA) make}
the device ideal for small, portable and battery
te _{powered applications. When shut down the load}
le _{is disconnected from the input and the supply}
o _{current is typically 0.02 µA. The ST619LB is}
Obs ^{available in SO-8 package.}
SO-8
Table 1.
Device summary
Order codes
ST619LB
November 2007
Rev. 4
SO-8 (tape & reel)
ST619LBDR
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www.st.com
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