CMOS middle current voltage regulator
ELM99xxxxxC
■General description
ELM99xxxxxC is CMOS middle current voltage regulator which consists of reference voltage source, error
amplifier, low resistance output transistor, short-circuit protection circuit, thermal protection circuit, output
voltage setting resisters and chip-enable circuit. ELM99 series is characterized with small input/output voltage
difference (with its low resistance output transistor) and high load stability (with its high gain error amplifier).
There are 3 types of CE selection of ELM99 series: non-chip enable function, “L” active and “H” active. The
standard output voltages are 3.3V, 5.0V; these output voltages are fixed internally with high accuracy. ELM99
series can also be made as semi-custom IC within the range of 1.5V to 15.0V by 0.1V step.
■Features
■Application
• Output voltage range
: 1.5V to 15.0V (by 0.1V)
• Battery operated devices
• Max. output current
: 300mA(Current is limited internally)
• Digital cameras
• Stand-by current consumption : Max.0.1μA(ELM99033xxC)
• Video recorders
• Input stability
: Typ.0.1%/V(Iout=40mA)
: Typ.5mV(1mA≤Iout≤100mA)
: ±2.0%
• Reference voltage source
• Load stability
• Accuracy of output voltage
• Protection circuit
• Package
: Thermal protection, Short protection
: SOT-89, SOT-89-5, SOT-23, SOT-25
■Maximum absolute ratings
Parameter
Input voltage
Symbol
Vin
Limit
20
Unit
V
CE/CE Input voltage
Output voltage
Output current
Vce
Vout
Iout
Vss-0.3 to Vin+0.3
Vss-0.3 to Vin+0.3
500
V
V
mA
500 (SOT-89, SOT-89-5)
300 (SOT-25)
250 (SOT-23)
-40 to +85
Power dissipation
Pd
mW
Operationg temperature
Storage temperature
Top
Tstg
°C
°C
-55 to +125
Output current must not exceed power dissipation specified in maximum absolute ratings.
*
■Selection guide
ELM99xxxxxC-x
Symbol
e.g. :
033: Vout=3.3V,
a, b, c
Output voltage
050: Vout=5.0V
1: No CE
ELM99 x x x x x C - x
↑ ↑ ↑ ↑ ↑ ↑ ↑
d
e
CE selection
2:
=“L” active
CE
3: CE=“H” active
a b c d e f g
A: SOT-89, SOT-89-5
B: SOT-23, SOT-25
C
Package
f
g
Product version
Taping direction
S, N: Refer to PKG file
Rev.1.0
12 - 1