AS1339 EB austriamicrosystems, AS1339 EB Datasheet - Page 6

• Manufacturer Part Number: AS1339 EB
• Description: BOARD EVAL AS1339
• Manufacturer: austriamicrosystems

Specifications of AS1339 EB

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 0.8 ~ 3.75 V, 2.85V, 2.85V
• Current - Output: 650mA
• Voltage - Input: 2.7 ~ 5.5 V
• Regulator Topology: Buck
• Frequency - Switching: 2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: AS1339
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Power - Output: -

AS1339
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 3. Electrical Characteristics (Continued)
1. Current into supply pins without leakage of DCDC switches.
2. Limited by the 50mV output voltage accuracy for V
3. The dropout voltage is the input to output difference at which the output is 100mV below its nominal value.
System Characteristics
V
otherwise specified), for external components refer to
characterisation and are not production tested.
Table 4. System Characteristics
www.austriamicrosystems.com/DC-DC_Step-Down/AS1339
BYPASS
LDO1/2
REFIN
LX
Symbol
Symbol
Load_tr Load transient response
IN1A
Line_tr Line transient response
R
f
OSC
OFF
= V
IN1B
Internal Oscillator Frequency
Bypass Activation Factor
On-Resistance Bypass PFET
PFET Bypass Off-Leakage
Current
Output Voltage
Quiescent Current
Output Current
Current Limit
Dropout Voltage
Shutdown Output Impedance
REFIN gain variation;
relative linearity
REFIN gain variation;
absolute linearity
Ripple voltage, PWM mode
= V
IN2
Parameter
Parameter
= V
PA_EN
1
3
2
= V
EN1
= V
3
EN2
V
I
I
V
V
I
one LDO enabled
both LDOs enabled
V
I
V
0.32V ≤ V
0.84V ≤ V
0.32V ≤ V
V
bypass mode, no pulse-skip condition
V
I
10µs
V
T
300mA
SW
SW
OUT
OUT
OUT
RISE
REFIN
IN
PAA
OUT
EN1/2
OUT
IN
IN
= 3.9V, T
= 5.5V,
= 3.4 to 3.9V, V
= 3.4 to 4.2V, V
= 200mA; T
= 200mA
= 0mA, 10mA;
= 10mA
= 300mA, V
= V
= 0V
= 0.8 to 3.4V, R
= T
= 0V
rising, 50mV hysteresis
PAB
FALL
REFIN
REFIN
REFIN
REFIN
Table 5 on page
A
Revision 1.05
= 0V
= -40ºC to +85ºC. Typical values are at T
Condition
Condition
= 10µs, I
A
≤ 1.4V
≤ 1.4V
≤ 0.84V
< 0.84V
IN
= +25°C
OUT
increase 300mV in
OUT
LOAD
OUT
= 3.0V,
= 3.0V,
I
= 8Ω, no
OUT
= 100 to
7. The following parameters are verified by
= 0mA
2.56
2.75
Min
Min
-2.4
-50
1.8
10
20
2.69
2.85
Typ
Typ
110
100
±10
0.1
25
40
35
20
10
30
50
2
A
=+25ºC, (unless
Max
2.78
2.95
Max
200
230
2.2
2.4
50
80
50
50
50
25
50
70
3
3
mVp-p
Unit
MHz
Unit
V/V
mΩ
mA
mV
mV
µA
µA
%
%
Ω
V
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