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qA8180SLU/SLT Series
A8180SLU/SLT Series
A8184SLT, A8187SLT are product of Allegro Microsystems, INC.
Surface-Mount, Low Quiescent Current, Low Dropout Voltage Dropper Type
sFeatures
* Compact surface-mount package (equivalent to SOT-89) * Output current: 0.15A * Low circuit current Iq60A (Output ON: VIN=6V, IO=0 to 0.1A) Iq(off)5A(Output OFF: A8183SLU,A8186SLU) * Low dropout voltage: VDIF150mV (IO=60mA) * Output ON/OFF control terminal is compatible with LS-TTL. (A8183SLU, A8186SLU) * Built-in thermal protection circuit
sApplications
* Portable phones and PHS telephones * Battery-driven electronic equipment
sAbsolute Maximum Ratings
Parameter DC Input Voltage DC Output Current Power Dissipation Junction Temperature Ambient Operating Temperature Storage Temperature Symbol VIN IO PD Tj Top Tstg Ratings 10 0.15 0.5(TC=25C) 150 -30 to +85 -40 to +150 Unit V A W C C C
(Ta=25C)
8
qA8180SLU/SLT Series
sElectrical Characteristics
Ratings Parameter Input Voltage Output Voltage Dropout Voltage Line Regulation Load Regulation Temperature Coefficient of Output Voltage Circuit Current Quiescent Circuit Current Control Voltage (Output ON) VC Terminal* Control Voltage (Output OFF) Input Current Symbol min. VIN VO Conditions VDIF Conditions VOLINE Conditions VOLOAD Conditions VO/Ta Conditions Iq Conditions Iq(off) Conditions VO(off) Conditions VC. OL Conditions IC Conditions -1.0 VIN=6V VIN=6V 1.0 -1.0 VIN=6V 2.0 VIN=6V 0.8 VIN=6V 1.0 5 VIN=4.5 to 8V, VC=0.4V 2.0 VIN=6V 0.8 45 60 45 -1.0 1.0 -1.0 30 90 30 7 20 7 2.9 3.0 A8183SLU typ. max. 8 3.1 0.15 2.9 3.0 VIN=4 to 8V, IO=0 to 0.1A 0.15 IO=60mA 20 VIN=4.5 to 6V, IO=0A 90 VIN=6V, IO=0 to 0.1A 1.0 60 VIN=6V, IO=0 to 0.1A 5 VIN=4.5 to 8V, VC=0.4V -1.0 45 1.0 60 30 90 7 20 min. A8184SLT typ. max. 8 3.1 3.2 3.3 min. A8186SLU typ. max. 8 3.4 0.15
(Ta=25C unless otherwise specified)
A8187SLT min. 3.2 typ. 3.3 max. 8 3.4 0.15 7 30 -1.0 45 20 90 1.0 60
Unit V V V mV mV mV/C A A V V A
VIN=4.5 to 8V, IO=0 to 0.1A
Tj=-30 to +85C
*Output is OFF when output ON/OFF terminal (VC terminal) is open.
sOutline Drawing
A8183SLU/A8186SLU
4.50.1 1.60.2 0.49max.
0.4
(unit: mm)
A8184SLT/A8187SLT
1.50.1 0.44max. 0~0.2
4.40 4.60 1.62 1.83 1.40 1.60 0.35 0.44
5 1.0
4
51
3.94 4.25
2.50.1
4.50.3
1
2
3
0.950.15
0.89 1.20
0.44max.
51
2.13 2.29 1 0.44 0.56 2 3 2.29 2.60 (min. /max.) (1.50) (3.00)
81
81
0.49max.
0.49max. 0.54max. 1.50.1 1.50.1
q w e r t
GND GND VC VIN VO
0.36 0.48
q VIN w GND e VO
9
qA8180SLU/SLT Series
sBlock Diagram
A8183SLU/A8186SLU
VIN r Amp. Reg. VC e ENABLE TSD VREF DRIVE t VO
A8184SLT/A8187SLT
VIN q Amp. Reg. DRIVE e VO
TSD
w GND q GND
VREF w GND
sStandard External Circuit
A8183SLU/A8186SLU A8184SLT/A8187SLT
VIN
VO
Output
VIN 1 Battery
VO 3
Output
Battery
*1 C1
VC GND GND
*2 C0
+
*1 C1
2 GND
*2 C0
+
*1 C1: Oscillation prevention capacitor (Approx. 0.3F) *2 C0: Output capacitor (Approx. 4.7F)
sTa-PD Characteristics
600
Power Dissipation PD (mW)
500
400
300
200
100
0
-30
0 25 50 75 Ambient Temperature Ta (C)
100
PD=IO*[VIN(mean)-VO]
10
qA8180SLU/SLT Series
sTypical Characteristics
(Ta=25C)
IO vs. VDIF Characteristics
0.20
Rise Characteristics (A8183SLU/A8184SLT) Circuit Current
5 50
Dropout Voltage VDIF (V)
4
40
Output Voltage VO (V)
0.15
Circuit Current Iq (A)
3
30
to IO=0
100m
A
0.10
2
20
1
mA
0A
0.05
10
IO =
0 0
20
40
60
80
100
120
0 0
IO= 100
1
2
3
4
5
6
7
8
0 0
1
2
3
4
5
6
7
8
Output Current IO (mA)
Input Voltage VIN (V)
Input Voltage VIN (V)
Output ON/OFF Control (A8183SLU)
4
Output Voltage VO (V)
3
2
1
0 0
0.5
1.0
1.5
2.0
2.5
3.0
Output Control Voltage VC (V)
11

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