Ordering number : ENA2169
LA59700MC
Monolithic Linear IC
Adjustable Voltage Type
Regulator
Overview
LA59700MC is an adjustable voltage regulator which has chip enable function.
The maximum current of 1.0A can be output.
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Features
•
Adjustable output voltage
•
Maximum output current: 1.0A
•
Chip enable function
•
Build-in over current protection circuit
•
Available ceramic capacitors
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VIN max
Pd max
Topr
Tstg
Mounted on a specified board *1
Conditions
Ratings
16
16
1.8
-40 to +85
-55 to +150
Unit
V
V
W
°C
°C
*1. Specified board: 50mm
×
50mm
×
1.6mm, glass epoxy double side board.
Note 1 : Absolute maximum ratings represent the values which cannot be exceeded for any length of time.
Stresses exceeding Maximum
is used within the range of absolute maximum ratings, as
ratings
of continuous
operation above the Recommended Operating
Note 2 : Even when the device
Ratings may damage the device. Maximum Ratings are stress
a result
only. Functional
usage under high temperature, high current,
Conditions is
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
high
not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
August, 2013
12313NKPC 20120327-S00004 No.A2169-1/9
LA59700MC
Recommended Operating Conditions
at Ta = 25°C
Parameter
Input voltage (VCC1)
Input voltage (VCC2)
Input voltage (EN)
Output voltage
*2. VDROP: Dropout voltage
Symbol
VCC1
VCC2
VEN
VOUT
Conditions
Ratings
3.5 to 15
*2 (VOUT+VDROP) to 15
0 to 15
1.5 to (VCC1-1.5)
Unit
V
V
V
V
Electrical Characteristics
at Ta
=
25°C, VCC1 = VCC2 = 3.5V, VEN = 1.6V, VOUT = 1.5V
Parameter
Supply current
Standby current
Output voltage
Output current
Dropout voltage
(VCC2-VOUT)
ADJ source current
Load regulation
Line regulation
Output voltage temperature
coefficient *3
Ripple rejection *3
RR
VCC1 = VCC2 = 4.25V, OUT = ADJ,
IOUT = 10mA, VRpp = 1V, fRR = 120Hz
COUT = Ceramic 10μF
Chip enable voltage
Disable voltage
EN input current
Thermal shutdown temperature *3
TSD hysteresis *3
VEN
VDIS
IEN
TTSD
THYS
VEN = 1.6V
Junction temperature
50
170
30
1.6
0.4
V
V
μA
°C
°C
65
dB
IADJ
RLD
RLN
ΔV
/
ΔT
Symbol
ICC
ISTBY
VOUT
IOUT
VDROP
IOUT = 500mA
IOUT = 1.0A
ADJ = 0V, OUT = Open
IOUT = 10mA to 500mA
VCC1 = VCC2 = 3.5V to 7V, IOUT = 10mA
Ta = -40 to +85°C, IOUT = 10mA
±100
VEN = 1.6V
VEN = 0V
OUT = ADJ, IOUT = 10mA
1.225
1.0
0.42
0.84
160
0.6
1.2
300
10
10
1.25
Conditions
Ratings
min
typ
3.5
max
7
1
1.275
Unit
mA
μA
V
A
V
V
nA
mV
mV
ppm/°C
*3. Design guarantee value, Do not measurement.
Package Dimensions
unit : mm (typ)
3439
2.5
Pd max -- Ta
Specified board: 50×50×1.6mm
3
glass epoxy duble side board.
TOP VIEW
4.93
8
SIDE VIEW
BOTTOM VIEW
(3.10)
Allowable power dissipation, Pd max -- W
2.0
1.8
1.5
(2.41)
3.94
5.99
1.0
1
2
1.27
SIDE VIEW
0.41
0.2
0.64
0.94
0.5
1.68 MAX
0
-40
-20
0
20
40
60
8085
100
Ambient temperature, Ta --
°C
0.05
(1.5)
SANYO : SOP8L(200mil)
No.A2169-2/9
LA59700MC
〈〈front〉〉
〈〈back〉〉
Specification of evaluation board: 50mm
×
50mm
×
1.6tmm, glass epoxy, double side board
Pin Assignment
OUT 1
ADJ 2
NC 3
GND 4
Top view
8 VCC2
7 VCC1
6 EN
5 GND
Block Diagram and Application Circuit Example
VCC2
10μF
8
VREF
(1.25V)
1
OUT
200Ω~
9.8kΩ
VOUT
Ceramic
10μF
R2
VCC1
1μF
7
2
Chip Enable
(High_Enable)
OCL
TSD
ADJ
R1
1kΩ
EN 6
Enable/
Disable
GND 5
4 GND
No.A2169-3/9
LA59700MC
Formula of Output Voltage Adjustment
VOUT = VADJ (≈1.25V) × (R1+R2)/R1
Note: Set the resistance of R1 and R2 so that a large enough current flows through the two resistors, making the effect
on the source current from the ADJ pin negligible.
Startup Method
This IC can be started in one of the following two ways:
(1) Start the IC by turning on and off the EN pin after applying power to VCC1 and VCC2.
(2) Short circuit the VCC1, VCC2, and EN pins.
When using method (1), apply power to VCC1 and VCC2 simultaneously, or in the order of VCC1 to VCC2, then to
the EN pin.
To shutdown the IC, follow the start-up procedure in reverse order.
Pin Function
Pin No.
1
Pin name
OUT
Output.
Function
Equivalent circuit
VCC1
VCC2
30kΩ
OUT
GND
2
ADJ
Adjustable input.
VCC1
2kΩ
1.3kΩ
ADJ
GND
3
4
5
6
NC
GND
GND
EN
No connection.
Ground. Connect to Pin 5 internally.
Ground. Connect to Pin 4 internally.
Chip Enable.
(High Enable)
VCC1
EN
20kΩ
105kΩ
55kΩ
GND
7
8
VCC1
VCC2
Analog power supply.
Output power supply.
*4 When you use this IC, Please short-circuit Exposed-Pad and GND-pin on the IC mounting side.
No.A2169-4/9
LA59700MC
5
ICC -- Ta
VCC1 = VCC2 = 15V
5
ICC -- VCC
VEN = 1.6V
VCC1 = VCC2
Output voltage 1.5V setting
4
4
Current drain, ICC -- mA
3.5V
3
7V 11V
Current drain, ICC -- mA
3
Ta = 85
°C
-40
°
C
25
°
C
2
2
1
Ta = 25°C
VEN = 1.6V
Output voltage 1.5V setting
0
50
100
150
1
0
-50
0
0
5
10
15
Ambient temperature, Ta --
°C
2.0
VOUT -- VCC
VEN = 1.6V
VCC1 = VCC2
Output voltage 1.5V setting
Input voltage, VCC -- V
1.30
VOUT -- Ta
Ta = 25°C
VEN = 1.6V
OUT = ADJ
Output voltage, VOUT -- V
1.5
Output voltage, VOUT -- V
1.25
2 = 15V
1 = V CC
V CC
3.5V
7V
11V
1.0
Ta = 85
°C
-40°C
25°C
1.20
0.5
0
0
5
10
15
1.15
-50
0
50
100
Input voltage, VCC -- V
1.0
Ambient temperature, Ta --
°C
1.5
VDROP -- IOUT
VEN -- Ta
Output voltage 1.5V setting
Chip enable voltage, VEN -- V
Dropout voltage, VDROP -- V
VCC1 = 3.5V
VDROP = VCC2
−
VOUT
VEN = 1.6V
Output voltage 1.5V setting
0.5
=
Ta
8
C
5
°
VCC1 = VCC2 = 3.5V
Almost same
VCC1 = VCC2 = 15V
1.0
2
°
C
-40
5
°
C
Ch
ip e
nab
le
Ch
ip
dis
abl
e
150
0
0
0.5
1
0.5
-50
0
50
100
Output current, IOUT -- A
100
Ambient temperature, Ta --
°C
IEN -- Ta
VEN = 1.6V
Output voltage 1.5V setting
EN input current, IEN --
μA
50
VCC 1 =
VCC 2 =
3.5V
15V
0
-50
0
50
100
150
Ambient temperature, Ta --
°C
No.A2169-5/9
51单片机
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