CS8101
Micropower 5V, 100mA Low Dropout
Linear Regulator with RESET and ENABLE
Features
■ 5V ±2% Output
Description
The CS8101 is a precision 5V
normal operation if the output
micropower voltage regulator with
very low quiescent current (70µA
typ at 100µA load). The 5V output is logic level compatible
accurate within ±2% and supplies
100mA of load current with a typi-
cal dropout voltage of only 400mV.
Microprocessor control logic
voltage drops outside the regulation
limits by more than 200mV typ. The
■ Low 70µA Quiescent
Current
ENABLE
■ Active RESET
input allows the user to put the reg-
ulator into a shutdown mode where
it draws only 20µA typical of quies-
cent current.
■
ENABLE Input for
ON/OFF and Active/Sleep
Mode Control
ENABLE
RESET
includes an
active
input and an
. This combination of
The regulator is protected against
reverse battery, short circuit, over
voltage, and thermal overload con-
ditions. The device can withstand
load dump transients making it
suitable for use in automotive envi-
ronments.
■ 100mA Output Current
Capability
low quiescent current, outstanding
regulator performance and control
logic makes the CS8101 ideal for
any battery operated, microproces-
sor controlled equipment.
■ Fault Protection
+60V Peak Transient
Voltage
-15V Reverse Voltage
Short Circuit
RESET
The active
circuit includes
The CS8101 is functionally equiva-
lent to the National Semiconductor
LP2951 series low current regula-
tors.
Thermal Overload
hysteresis, and operates correctly at
an output voltage as low as 1V. The
■ Low Reverse Current
RESET
function is activated during
the power up sequence or during
(Output to Input)
Package Options
Block Diagram
20L SOIC Wide
(Internally Fused Leads)
1
V
V
ENABLE
NC
OUT
IN
NC
V
OUT
NC
NC
V
IN
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
NC
Over
Current Source
(Circuit Bias)
Voltage
Shutdown
Internally connected
on 5 lead TO-220
NC
NC
ENABLE
Current Limit
Sense
NC
NC
RESET
V
Sense
OUT
8L SOIC
5L TO-220
Tab (Gnd)
+
-
Error
Amplifier
1
V
V
IN
OUT
Sense
V
NC
OUT
Thermal
Protection
ENABLE
Gnd
NC
RESET
Bandgap
Reference
1. VOUT
ENABLE
3. Gnd
4. RESET
5. VIN
2.
RESET
+
-
Gnd
Reset
Comparator
Other Packages: D2PAK (consult factory)
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
Rev. 4/9/99
A
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Company
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