Calogic LLC CLM2830AU, CLM2830AT Datasheet
CORPORATION
3.0A Low Dropout Volt age Regulator
Adjustable
CLM2830
FEATURES
Adjustabl e Out put Down t o 1.2V
••
Output Current of 3A
••
Low Dropout Voltage
••
Extremely Tight Load Regulation 0.01%(typ.)
••
Extremel y Tig h t Line Regul ati on 0. 015 %(typ. )
••
Current and Thermal Limiting
••
Standard 3-Te rmi nal Low Cost TO -2 20
••
Similar to Industry Standard LT1085
••
APPLICATIONS
Powering Int el Penti umTM µP from +5V Supplies
••
Power PCTM Supplies
••
SMPS Post-Regula tor
••
High Effic ie ncy "Gr ee n " Com put er System s
••
High Efficie ncy Line ar Powe r Supp lies
••
Portable I nst ru me nt atio n
••
Constant Curr ent Regulators
••
Adjustable Power Supplies
••
Battery Charger s
••
PIN CONNECTIONS
PRODUCT DESCRIPTION
The Calogic CLM2830 is a low power 3A adjustable voltage
regulator that is very easy to use. It requires only 2 external
resistors to set the output voltage. This device is an excellent
choice for use in powering Intel
from +5V to 3.3V supplies and as a post regulator for
switching supplies application s.
The CLM2830 offers full protect ion against over -current f aults,
reversed input polarity, reversed load insertion, and positive
and negative transient voltage. On-Chip trimming adjusts the
reference voltage to 1%. The I
load which increases the effic iency.
The CLM2830 is offered in a 3-pin TO-220 package
compatible with older 3 terminal regulators. For a 5A low
dropout regulat or refer to the CLM 285 0 data she et.
ORDERING INFORMATION
PART PACKAGE TEMPERATURE
CLM2830AU TO-220 (3-Pin) IND.
CLM2830AT TO-263 Plastic (3-Pin) IND.
For fixed output voltage contact factory.
TM
microprocessors to convert
of this device flows into the
Q
PLASTIC TO-263 PACKAGE
3
2
CLM2830
1V
FRONT VIEW
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, Cal ifornia 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025
V
V
ADJ
1E-40
IN
OUT
PLASTIC PACKAGE TO-220
CLM2830
FRONT VIEW
V
V
V
ADJ
1E-41
IN
OUT
CLM2830
ABSOLUTE MAXIMUM RATINGS
Lead Temp. (Solder ing, 10 Se conds) . . . . . . . . . . . . . . 300
Storage Temperatur e Ra nge. . . . . . . . . . . . . . . -65 to +150
Operating Ju nction Temperatur e Ran ge
CLM2830 Cont rol Sect i on . . . . . . . . . . . . . . 0
CLM2830 Power T ransist or. . . . . . . . . . . . . 0
o
C to +125oC
o
C to +150oC
CORPORATION
o
C
o
C
Input Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . +30V
Input to Out put Voltage Differential . . . . . . . . . . . . . . . . . +30V
ELECTRICAL CHARACTERISTICS: ( Note 1) I
PARAMETER
CLM2830
= 10mA, TA = 25oC, unless otherwise specified .
OUT
UNITS CONDITIONS
MIN TYP MAX
Reference Voltage
1.238
1.225
Min. Load Current
Line Regulation
Load Regulation
Dropout Voltage 1.1 1.5 VI
Current Limit
3.2
0.2
Long T erm Stability 0.3 1 % T
1.250
1.250
40
5
0.015
0.035
0.05
0.1
0.2
4.0
0.5
1.262
1.270
50
10
0.2
0.2
0.5
0.3
0.4
VV10mA ≤ I
1.5V ≤ (VIN - V
mAmA(V
- V
IN
CLM2830
%
1.5V ≤ V
%
I
= 10mA
LOAD
%
15V ≤ V
%%10mA ≤ I
(VIN - V
= I
OUT
AAV
- V
IN
V
- V
IN
= 125oC, 1000 Hrs.
A
Adjust Pin Current 55 120 µA
Adjust Pin Current Change 0.2 5 µA
Thermal Regulation 0.004 0.02 %/W 30ms pulse
T emperature Stability 0.5 %
Ripple Rejection Ratio 60 75 dB V
Output Noise, RMS 0.003 %V
o
Thermal Resistance
0.7/3.0
C/W CLM2830 - TO-220 and TO-263
Junction-to-Case
IN
I
OUT
10Hz to 10kHz
O
- V
= 3A, C
≤ I
OUT
FULLLOAD
≤ 25V (Over T emperature)
OUT
) = +25V, CLM2830A
OUT
- V
- V
OUT
) = 3V
= 5V
= 25V
= 3V
OUT
OUT
≤ I
FULLLOAD
OUT
, ∆V
≤ 15V
≤ 30V
REF
= 25µF, C
IN
IN
OUT
FULLLOAD
OUT
OUT
OUT
= 1%
= 25µF, f = 120Hz
ADJ
The Bold specif i catio ns app l y to the over full ope rating temperature range.
Note 1: Changes in output voltage due to heating effects are covered under the specification for thermal regulation.
Note 2: A 10µF output capacitor is required on CLM2830.
Note 3: Value shown for control circuitry (power transistor).
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, Cal ifornia 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025
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