YB1692 Datasheet, PDF (3/10 Pages) YOBON TECHNOLOGIES,INC. – 2A Synchronous Step-Down Converter

YB1692
2A Synchronous Step-Down Converter
Absolute Maximum Ratings⁽¹⁾
Supply Voltage............................-0.3V to 20V
Switch Voltage..........................................21V
Bootstrap Voltage...... V_SW -0.3V to V_SW + 6V
Enable/UVLO Voltage...............–0.3V to +6V
Comp Voltage...........................–0.3V to +6V
Feedback Voltage.....................–0.3V to +6V
Junction Temperature ....................... +150℃
Lead Temperature ............................. +260℃
Storage Temperature........... –65°C to +150℃
Recommended Operating Conditions⁽²⁾
Input Voltage............................. 4.75V to 18V
Output Voltage.......................... 0.923 to 15V
Operating Temperature............–45℃to +85℃
Thermal Resistance⁽³⁾ θ_JA θ_JC
SOP8 ................................ 90...... 45... ℃/W
Notes:
(1) Exceeding these ratings may damage the
device.
(2) The device is not guaranteed to function
outside of its operating conditions.
(3) Measured on approximately 1”square of 1
oz copper.
Electrical and Optical Characteristics
Table 2 VIN = 12V, TA=25°C, Test Circuit Figure 1, unless otherwise noted.
Description
Input Voltage
Shutdown Supply Current
Supply Current
Feedback Voltage
Feedback Overvoltage Threshold
High-Side Switch Leakage
Soft-star Current
Soft-Start Period
Switch Current Limit
Oscillator Frequency
EN Pin Threshold
Internal MOS R_DSON
Maximum Duty Cycle
Minimum On Time
Efficiency
Thermal Shutdown
Symbol
Test Conditions
V_IN
I_STBY
I_CC
V_FB
V_EN=0V
V_EN=2V , V_FB=1.0V
4.75V≤V_IN ≤18
Min
4.75
900
V_EN=0V , V_SW=0V
I_SS
V_SS
C_SS = 0.1μF
Minimum Duty Cycle
2.4
I_LIM
From Drain to Source
F_OSC
V_EN
1.1
R_DSON
D_MAX
η
T_OSTD
V_IN=8V V_OUT=3.3 I_OUT=500mA
Typ.
1
1.3
923
1.1
6
15
3.4
1.1
340
1.5
130
90
220
93
160
Max Units
18
V
3
μA
1.5 mA
946 mV
V
10 μA
μA
ms
A
A
KHz
2.0 V
mΩ
％
nS
％
°C
YB1692 Rev.1.0
www.yobon.com.tw
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