Advanced Power
Electronics Corp.
APE8837
DUAL CHANNEL LDO REGULATORS WITH ENABLE
FEATURES
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DESCRIPTION
The APE8837 is a high accurately, low noise, high
ripple rejection ratio, low dropout, dual CMOS LDO
voltage regulators with enable function. The EN
function allows the output of each regulator to be
turned off independently, resulting in greatly reduced
power consumption.
The APE8837 has the soft start function to suppress
the inrush current. The current limit is over 250mA
per channel and also operates as a short protection
for the output current limiter. The output voltage for
each regulator is set independently by metal
trimming.
The APE8837 is fully compatible with low ESR
ceramic capacitors, reducing cost and improving
output stability. This high level output stability is
maintained even during frequent load fluctuations,
due to the excellent transient response performance
and high PSRR achieved across a broad range of
frequency. It is available in the SOT-26, TSOT-26
and DFN 2x2 packages.
Input Voltage Range : 2.5V to 6V
Varied Fixed Output Voltage Combinations
200mV Dropout at 200mA Output Current (Vout
≧2.5V)
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Output Current: 200mA/channel (typ.)
Low Quiescent Current : 60uA (typ.)
Current Limit and Short Current Protection
Thermal Shutdown Protection
Fast Transient Response
Low ESR Capacitor Compatible (X7R, X5R)
Halogen Free Product
TYPICAL APPLICATION
VIN
CIN
2.2uF
VOUT2
EN 2
VIN
EN 1
VOUT1
VOUT 2
VOUT 1
GND
COUT2
2.2uF
APE8837
COUT1
2.2uF
Data and specifications subject to change without notice
1
20130916V7.3
Advanced Power
Electronics Corp.
ORDERING / PACKAGE INFORMATION
APE8837 XX
Output Type Code
Package Type
Y: SOT-26
TY: TSOT-26
GN2: DFN 2x2-6L
Top View
SOT-26 / TSOT-26
VOUT1 GND VOUT2
6
5
4
APE8837
(Marking)
1
EN1
2
VIN
3
EN2
Output Type Code : (V
OUT1
+V
OUT2
)
A : 1.5V+2.8V
B : 1.8V+2.8V
C : 1.8V+2.6V
D : 1.8V+3.3V
E : 2.5V+2.8V
F : 2.8V+1.2V
G : 2.8V+1.8V
H : 2.8+3.0V
J : 2.8+3.3V
K : 3.0+3.0V
L : 3.0V+3.3V
M : 3.3V+3.3V
N : 1.2V+3.3V
P : 1.8V+3.0V
Q : 1.5V+2.5V
R : 3.3V+1.8V
S: 1.2V+1.8V
T : 1.5V+3.3V
U : 2.5V+2.5V
V : 1.5V+3.0V
W : 1.2V+2.8V
X : 1.2V+1.2V
Y : 2.8V+1.5V
Z : 2.8V+2.8V
EN1
VIN
Top View
DFN 2x2-6L
1
2
Exposed
Pad
6
5
4
VOUT1
GND
VOUT2
EN2
3
GND
ABSOLUTE MAXIMUM RATINGS
(at T
A
=25°C)
VIN
VOUT1, VOUT2
EN1, EN2
Output Current (I
O1
+I
O2
)
Junction Temperature (T
J
)
Operating Temperature Range (T
OP
)
Storage Temperature Range (T
ST
)
Lead Temperature (Soldering, 10sec.)
Thermal Resistance from Junction to Ambient (Rθ
JA
)
SOT-26 / TSOT-26
DFN 2x2-6L
Thermal Resistance from Junction to Case (Rθ
JC
)
SOT-26 / TSOT-26
DFN 2x2-6L
180C/W
25°C/W
250°C/W
120°C/W
-0.3V to 6.5V
-0.3V to 6.5V
-0.3V to 6.5V
800mA
-40 to 125°C
-40°C to 85°C
-65 to +150°C
260°C
Note: Rθ
JA
is measured with the PCB copper area of approximately 1 in (Multi-layer) which connect to GND pin or exposed pad (DFN
2x2-6L).
2
2
Advanced Power
Electronics Corp.
ELECTRICAL SPECIFICATIONS
(V
IN
=5V, T
A
=25°C, unless otherwise specified)
PARAMETER
Input Voltage
Output Voltage Accuracy
Quiescent Current
SYM
V
IN
ΔV
OUT
I
CC
TEST CONDITION
I
OUT
=10mA
I
OUT
=1mA, V
IN
=5V, V
OUT
>1.8V
I
OUT
=1mA, V
IN
=5V,V
OUT
≦1.8V
I
OUT1,2
=0mA, V
IN
=5V
I
OUT
=0.2A, V
O
=V
O
-2%, V
OUT
=1.2V
Dropout Voltage
V
DROP
I
OUT
=0.2A, V
O
=V
O
-2%, V
OUT
=1.5V
I
OUT
=0.2A, V
O
=V
O
-2%, V
OUT
=1.8V
I
OUT
=0.2A, V
O
=V
O
-2%, V
OUT
>2.5V
Current Limit
(Note1)
Short Circuit Current
Line Regulation
Load Regulation
(Note 1)
Ripple Rejection
(Note2)
Output Voltage Temperature
Coefficient
(Note2)
I
LIMIT
I
SC
ΔV
LINE
ΔV
LOAD
PSRR
T.C.
V
IN
=V
OUT
+1.0V, V
EN
=V
IN
Output Voltage < 0.25xV
OUT
,
each channel
I
OUT
=1mA, V
IN
=V
OUT
+1V to 6.0V
I
OUT
=1~100mA, V
IN
=V
OUT
+1V
f=120Hz, I
OUT
= 30mA
I
OUT
=1mA
V
IN
=5V
V
ENH
Enable Input Threshold
V
ENL
Enable Pull-high Current
Shutdown Current
Thermal Shutdown Threshold
(Note2)
APE8837
MIN
2.5
-2
-0.04
TYP
MAX
6
2
0.04
UNIT
V
%
V
uA
mV
mV
mV
mV
mA
60
1100
800
500
200
250
150
0.2
0.01
60
+100
1.7
1.4
100
1500
1200
900
400
mA
0.3
0.03
%/V
%/mA
dB
ppm/
ºC
V
V
1.2
1.0
V
V
uA
uA
o
o
V
IN
=3.3V
V
IN
=5V
V
IN
=3.3V
I
EN1,2
I
SD
T
SD
V
EN1,2
= 0V
I
OUT1,2
=0mA, V
IN
=5V, V
EN1,2
=0V
-
-
1
2
150
2
4
C
C
Hysteresis
40
Note1: It is measured at constant junction temperature by using pulsed testing with a low ON time.
Note2: Guarantee by design, not production tested.
3
stm32/stm8
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