SI9165_07 Datasheet, PDF (3/10 Pages) Vishay Siliconix – High Frequency 600-mA Synchronous Buck/Boost Converter

Si9165
Vishay Siliconix
SPECIFICATIONS
Parameter
SD, SYNC, PWM/PSM
Symbol
Test Conditions
Unless Otherwise Specified
2.7 V < V_DD < 6 V,
V_IN/OUT = 3.3 V, V_S = 3.3 V
Min^a
Logic High
V_IH
Logic Low
V_IL
Input Current
I_L
Oscillator
2.4
- 1.0
Maximum Frequency
Accuracy
Maximum Duty Cycle (Buck, Non LDO Mode)
Maximum Duty Cycle (Boost)
F_MAX
D_MAX
2
Nominal 1.60 MHz, R_OSC = 30 kΩ
- 20
75
F_SW = 2 MHz
50
SYNC Range
F_SYNC/F_OSC
1.2
SYNC Low Pulse Width
50
SYNC High Pulse Width
50
SYNC t_r, t_f
Error Amplifier
Input Bias Current
Open Loop Voltage Gain
FB Threshold
I_BIAS
A_VOL
V_FB
V_FB = 1.5 V
T_A = 25 °C
-1
50
1.270
1.258
Unity Gain BW
Output Current
Output Current
BW
I_EA
Source (V_FB = 1.05 V), V_COMP = 0.75 V
Sink (V_FB = 1.55 V), V_COMP = 0.75 V
1
Output Current (PWM)
Boost Mode^c
Buck Mode^d
Output Current (PSM)
Boost Mode^c
Buck Mode^d
r_DS(on) N-Channel
r_DS(on) P-Channel
Over temperature protection
I_OUT
r_DS(on)
V_IN ≤ V_OUT = 2.7 to 5.0 V
600
V_IN ≥ V_OUT = 2.7 to 6.0 V
600
V_IN = 3.3 V, V_OUT = 3.6 V
150
V_IN = 3.6 V, V_OUT = 2.7 V
150
V_S ≥ 3.3 V
Trip Point
Rising Temperature
Hysteresis
Supply Current
Normal Mode
V_DD = 3.3 V, F_OSC = 2 MHz
PSM Mode
I_DD
V_DD = 3.3 V
Shutdown Mode
V_DD = 3.3 V, SD = 0 V
Notes:
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c. V_IN = V_DD, V_OUT = V_IN/OUT = V_S = V_O, L = 1.5 µH.
d. V_IN = V_DD = V_S = V_IN/OUT, V_OUT = V_O, L = 1.5 µH.
Limits
Typ^b
85
65
60
1.30
1.30
2
-3
3
130
160
165
25
500
180
Max^a
0.8
1.0
20
1.5
50
1
1.330
1.342
-1
300
330
750
250
1
Unit
V
µA
MHz
%
ns
µA
dB
V
MHz
mA
mA
mΩ
°C
µA
Document Number: 70845
S-72058-Rev. D, 08-Oct-07
www.vishay.com
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